Call it a once-in-a-lifetime chance to see two natural wonders at once.
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Visitors enjoy the American Falls from Prospect Point at Niagara Falls State Park on Thursday. Hundreds of thousands of visitors are expected in both Niagara Falls cities for the April 8 solar eclipse.
A rainbow forms over the Horseshoe Falls as seen from the Table Rock Welcome Center in Niagara Falls, Ontario, on Thursday. The rainbow may be pink during eclipse totality on April 8.
Tyler Nordgren, known for his eclipse-themed designs, created this logo for the upcoming total solar eclipse for Destination Niagara USA.
The 44-room Giacomo Hotel in Niagara Falls, New York, has guests coming in from Houston, Florida and Minnesota for the April 8 eclipse.
2017 total solar eclipse: Wonder and awe as the moon darkened our sky
Karuna photo gallery sponsor
The Moon blocks out the Sun over Chesterfield on Monday, August 21, 2017. Chesterfield received about 1 minute and 20 seconds of totality. Photo by David Carson, dcarson@post-dispatch.com
The moon passes in front of the sun during totality of a solar eclipse on Monday, Aug. 21, 2017, near Perryville, Mo. This image was made with a combination of three separate photographs to increase the dynamic range of the picture.
The moon passes in front of the sun during totality of a solar eclipse on Aug. 21, 2017, near Perryville, Mo.
Saab Zacharias, of Chesterfield, watches as the eclipse starts in Chesterfield on Monday, August 21, 2017. Chesterfield will receive about 1 minute and 20 seconds of totality. Photo by David Carson, dcarson@post-dispatch.com
The Moon blocks out the Sun as the arm from the sculpture The Awakening reaches out to it in Chesterfield on Monday, August 21, 2017. Chesterfield received about 1 minute and 20 seconds of totality. The sculpture is The Awakening, by J. Seward Johnson. It is the second casting of the sculpture, the original is located in Prince George's County, Maryland. Photo by David Carson, dcarson@post-dispatch.com
The Moon blocks out the Sun as the arm from the sculpture The Awakening reaches out to it in Chesterfield on Monday, August 21, 2017. Chesterfield received about 1 minute and 20 seconds of totality. The sculpture is The Awakening, by J. Seward Johnson. It is the second casting of the sculpture, the original is located in Prince George's County, Maryland.
Photo by David Carson, dcarson@post-dispatch.com
The Moon blocks out the Sun over Chesterfield on Monday, August 21, 2017. Chesterfield received about 1 minute and 20 seconds of totality.
Photo by David Carson, dcarson@post-dispatch.com
Laura Rupp, from Chicago, watches as the eclipse starts in Chesterfield on Monday, August 21, 2017. Chesterfield will receive about 1 minute and 20 seconds of totality. Photo by David Carson, dcarson@post-dispatch.com
The Moon begins to move in front of the Sun at the start of the eclipse as seen in Chesterfield on Aug. 21 2017. Chesterfield received about 1 minute and 20 seconds of totality.
A composite image of 8 pictures shows the phases of the total eclipse as the moon passes from left to right in front of the sun during a solar eclipse on Monday, Aug. 21, 2017, near Perryville, Mo. Shot with an equivalent of an 800mm lens, the partial phases are single exposures. The center image of the total eclipse is made from multiple exposures that help show more detail of the sun's corona around the moon. Photo by Chris Lee, clee@post-dispatch.com
"I can't see anything but the dark orange glow of the sun," said Mark McDonough of Aurora, Ill., who tests out his eclipse glasses on Monday, Aug. 21, 2017, at the Austin Pitcairn Roadside Park in Herculaneum. Photo by Laurie Skrivan | lskrivan@post-dispatch.com
Convenience store in tiny Bloomsdale, Mo., population 542, charging $20 for parking. Photo by Lisa Brown, lbrown@post-dispatch.com
Visitors lined up hours before a rolling NASA exhibit opens in Jefferson City on Aug. 21, 2017. Photo by Kurt Erickson. Kerickson@post-dispatch.com
A homeowner anticipates a crowd on Monday, Aug. 21, 2017, in Herculaneum. The town is in the path of totality. Photo by Laurie Skrivan | lskrivan@post-dispatch.com
"I've been wanting to come down ever since I read about it five years ago when I was 12," said Simon Geiger-Schutz, 17, of Fountain City, Wisc., who sets up a 6-inch telescope with a homemade solar filter on Monday, Aug. 21, 2017, at the Austin Pitcairn Roadside Park in Herculaneum. Simon made the trip with his father Brent Geiger-Schutz. Photo by Laurie Skrivan | lskrivan@post-dispatch.com
A man watches the eclipse in front of Tony Tasset's 'Eye' sculpture at Laumeier Sculpture Park on Monday, Aug. 21, 2017. Photo by Christian Gooden, cgooden@post-dispatch.com
The Rev. Larry Rice hands out eclipse glasses and bus passes in downtown St. Louis as the lights of the St. Louis Library begin to glow. Photo by Jesse Bogan of the Post-Dispatch.
Members and guests of the Forty Acre Club, a nudist club near Lonedell, took pictures of the eclipse as it neared totality. Three hundred and fifty four people were in attendance for the weekend festivities. Photo by J.B. Forbes, jforbes@post-dispatch.com
The Moon blocks out the Sun as the arm from the sculpture The Awakening reaches out to it in Chesterfield on Monday, August 21, 2017. Chesterfield received about 1 minute and 20 seconds of totality. The sculpture is The Awakening, by J. Seward Johnson. It is the second casting of the sculpture, the original is located in Prince George's County, Maryland. Photo by David Carson, dcarson@post-dispatch.com
Carol Haywood, from St. Chesterfield, and Candy Hahn, from St. Charles, look up as the Moon begins to blot out the Sun during the eclipse over Chesterfield on Monday, August 21, 2017. Chesterfield received about 1 minute and 20 seconds of totality. Photo by David Carson, dcarson@post-dispatch.com
As the moment of totality rapidly approaches, Henry Jennings, 10, in front, his sister Lucy Jennings, 8, and their grandmother Mary Kinney, all of Webster Groves, make sure their glasses are properly on. The pool at the Webster Groves Rec Center opened for special hours Aug. 21, 2017, for eclipse-watchers.
Shadows thrown by a sycamore tree on the parking lot of the Webster Groves Rec Center are crescent-shaped after the moment of eclipse totality has passed, Monday, Aug. 21, 2017. The Rec center pool opened for special hours Monday for eclipse-watchers. photo by Hillary Levin, hlevin@post-dispatch.com
Webster Groves Recreation leader Jeanne Samson right, helps Chip Beers fit his glasses correctly, Monday, Aug. 21, 2017 at the pool at the Webster Groves Rec Center. The Rec center pool opened for special hours Monday for eclipse-watchers. photo by Hillary Levin, hlevin@post-dispatch.com
Webster Groves Recreation Center Superintendent Miki McKee Koelsch photographs the eclipse with a special filter made for the front of her camera, Monday, Aug. 21, 2017 at the pool at the Webster Groves Rec Center. The Rec center pool opened for special hours Monday for eclipse-watchers. photo by Hillary Levin, hlevin@post-dispatch.com
From left, Sarah MacEwan, of Webster Groves and her daughters Ava, 8, and Felicity, 5 enjoy the approaching total solar eclipse, Monday, Aug. 21, 2017 at the pool at the Webster Groves Rec Center. The Rec center pool opened for special hours Monday for eclipse-watchers. photo by Hillary Levin, hlevin@post-dispatch.com
"I am surprised there are not more people here," said Rick Wiese of Pevely , who found a spot off Highway 61 to watch the eclipse with his wife Donna on Monday, Aug. 21, 2017 in Herculaneum. Herculaneum was in the path of totality for approximately 2 minutes and 32 seconds. Photo by Laurie Skrivan | lskrivan@post-dispatch.com
"There's Venus," said Ray Behymer, who points out the planet to his wife Dottie during totality of the lunar eclipse in his front yard along the 1300 block of Riverview on Monday, Aug. 21, 2017, in Festus. Festus was in the path of totality for approximately 2 minutes and 36 seconds. Photo by Laurie Skrivan | lskrivan@post-dispatch.com
Oakville Elementary School student Emina Huns joins classmates at a study station where students created an interactive paper model of the earth, moon and sun as part of the curriculum at the school in Oakville as the students prepared for the total solar eclipse that passed across the St. Louis area Monday, Aug. 21, 2017. Staff at the school held a day of activities related to the eclipse, including studying phases of the moon, the rings around Saturn, creating a three-dimensional rendering of the moon, earth and sun and building and launching air-powered rockets. Photo by Sid Hastings
Oakville Elementary School student Truman Jones (right) and other students await their turn to launch air-powered rockets they built in the gym at the school in Oakville, part of the curriculum as the students prepared for the total solar eclipse that passed across the St. Louis area Monday, Aug. 21, 2017. Staff at the school held a day of activities related to the eclipse, including studying phases of the moon, the rings around Saturn, creating a three-dimensional rendering of the moon, earth and sun and building and launching air-powered rockets. Photo by Sid Hastings
Oakville Elementary School student Molly Manley participates in a study station where students built and launched air-powered rockets in the gym at the school in Oakville, part of the curriculum as the students prepared for the total solar eclipse that passed across the St. Louis area Monday, Aug. 21, 2017. Staff at the school held a day of activities related to the eclipse, including studying phases of the moon, the rings around Saturn, creating a three-dimensional rendering of the moon, earth and sun and building and launching air-powered rockets. Photo by Sid Hastings
Oakville Elementary School students Anna Subasic (left), Riley Deerickson and Nelson Quintanilla join other students from the school outside the building to view the total eclipse that passed across the St. Louis area Monday, Aug. 21, 2017. Staff at the school held a day of activities related to the eclipse, including studying phases of the moon, the rings around Saturn, creating a three-dimensional rendering of the moon, earth and sun and building and launching air-powered rockets. The three children are students in Julie Bell's second grade class. Photo by Sid Hastings
Oakville Elementary School students and their families join faculty and staff from the school outside the building to view the total eclipse that passed across the St. Louis area Monday, Aug. 21, 2017. Staff at the school held a day of activities related to the eclipse, including studying phases of the moon, the rings around Saturn, creating a three-dimensional rendering of the moon, earth and sun and building and launching air-powered rockets. Photo by Sid Hastings
Vanessi Halasey of Belleville and Kaelan Davis of Mahomet, Ill., watch the solar eclipse as it approaches totality on Aug. 21, 2017, in Makanda, Ill. “I can see just a little part of it, and I’ve never seen that before,” Halasey said. “I’m so excited. I can’t wait until I see the totality!”
"There it is! It's so beautiful!" said Jennifer Boyd, a resident of Makanda, on Monday, August 21, 2017, while witnessing her first total solar eclipse from the second story of Dave Dardis' "Rainmaker Art Studio," on the Makanda Boardwalk. "It was so peaceful," Boyd said later of the experience. "It was a feeling of calm, a spiritual feeling." Photo by Morgan Timms, mtimms@post-dispatch.com
Joshua Smith, of Salem, Ill., watches the solar eclipse approach totality Monday, August 21, 2017, in "Rainmaker's Garden" behind Dave Dardis' store, "Rainmaker Art Studio," on the Makanda Boardwalk. Photo by Morgan Timms, mtimms@post-dispatch.com
Tommy Lopez, of Lumberton, Texas, shows his 3-year-old granddaughter, Alicia Rivas, where to look for the total solar eclipse Monday, August 21, 2017. in Makanda. Photo by Morgan Timms, mtimms@post-dispatch.com
Delores Stockett, of Osceola, Arkansas, sits by train tracks in anticipation of the total solar eclipse Monday, August 21, 2017, in Makanda. Stockett drove to Makanda alone to watch the eclipse because "none of [her] friends wanted to wake up at 4 a.m to drive." "My friends aren't as curious as I am," said Stockett. "But the eclipse is historical. It's monumental. It's an important event that one will not see very often in one's lifetime." Photo by Morgan Timms, mtimms@post-dispatch.com
Biscuit King, of Carbondale, paints stars on her face Monday, August 21, 2017, while waiting for customers at her face-painting booth before the total solar eclipse in Makanda. Photo by Morgan Timms, mtimms@post-dispatch.com
From left: Robert Stengel, Lauren Stengel and Gabrielle Stengel, all of Greenville, Ill., watch the solar eclipse as it nears totality Monday, August 21, 2017, in Makanda. Photo by Morgan Timms, mtimms@post-dispatch.com
Crescent shadows appear around the eclipse centerline Monday, August 21, 2017, in Makanda. Photo by Morgan Timms, mtimms@post-dispatch.com
Biscuit King, of Carbondale, watches the total solar eclipse Monday, August 21, 2017, in Makanda. Photo by Morgan Timms, mtimms@post-dispatch.com
Bands entertain visitors, including a woman spinning lighted balls, in downtown Carbondale in advance of Monday's eclipse on Sunday, Aug. 20, 2017. A long camera exposure allowed the streaks of light to be captured. Photo by Robert Cohen, rcohen@post-dispatch.com
Visitors line up for ice cream at the downtown Dairy Queen on Illinois Street in advance of Monday's eclipse on Sunday, Aug. 20, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
Jasmine Reardon, a senior at Southern Illinois University Carbondale, wears an Earth tutu as part of her eclipse-themed outfit at Eclipse Comic Con on Sunday, Aug. 20, 2017. Reardon, of Effingham, Ill., kissed her boyfriend, David Ainsworth of Lemay, before heading into the costume contest. Photo by Robert Cohen, rcohen@post-dispatch.com
Southern Illinois University Carbondale police officers try out the weapons from a gathering of Star Wars Stormtroopers at Eclipse Comic Con held at the student center on Sunday, Aug. 20, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
Eclipse-themed cookies from 6 Pence Cabinet of Curiosities were for sale in downtown Carbondale on Sunday, Aug. 20, 2017. Area businesses are taking advantage of being in the path of totality for Monday's eclipse. Photo by Robert Cohen, rcohen@post-dispatch.com
Alex Apgar (left) and Grace Grimmer portray Nora and Pyrrha Nikos from RWBY fanfiction as they head to Eclipse Comic Con at the student center of Southern Illinois University Carbondale on Sunday, Aug. 20, 2017. Both are incoming freshmen at SIUC. Photo by Robert Cohen, rcohen@post-dispatch.com
The eclipse approaches totality at Saluki Stadium on the campus of Southern Illinois University Carbondale on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
A composite image of 8 pictures shows the phases of the total eclipse as the moon passes from left to right in front of the sun during a solar eclipse on Monday, Aug. 21, 2017, near Perryville, Mo. Shot with an equivalent of an 800mm lens, the partial phases are single exposures. The center image of the total eclipse is made from multiple exposures that help show more detail of the sun's corona around the moon. Photo by Chris Lee, clee@post-dispatch.com
Rick Crosslin, scientist-in-residence for the Wayne Township Metropolitan School District in Indianapolis, has Quincy Schultz, 9, hold a moon as he teaches Quincy and Jaycee Abner, 10, about the moon's rotation around the Earth at Saluki Stadium on the campus of Southern Illinois University Carbondale before the eclipse begins on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
Saluki cheerleaders try out eclipse glasses that they were giving out to visitors to Saluki Stadium on the campus of Southern Illinois University Carbondale on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
Ginny Bader (left) of Mesa, Ariz. and Grace Garcia of San Antonio, Tx. apply sunscreen from gallon jugs at Saluki Stadium on the campus of Southern Illinois University Carbondale before the eclipse begins on Monday, Aug. 21, 2017. "We don't even have buckets of sunscreen in San Antonio, and it was 102 degrees when we left," said Garcia. Photo by Robert Cohen, rcohen@post-dispatch.com
A Stormtrooper takes aim at an innocent photographer while visiting with guests in line to enter Saluki Stadium for the eclipse festivities on the campus of Southern Illinois University Carbondale on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
The eclipse approaches totality at Saluki Stadium on the campus of Southern Illinois University Carbondale on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
Clouds break in time to the cheers of fans who got to briefly see the total eclipse inside Saluki Stadium on the campus of Southern Illinois University Carbondale on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
A Stormtrooper gives a fist bump to a member of the Marching Salukis as the band enters Saluki Stadium on the campus of Southern Illinois University Carbondale on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
Tom Gertz of Laguna Hills, Calif. came prepared while waiting to enter Saluki Stadium for eclipse festivities on the campus of Southern Illinois University Carbondale on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
An unidentified woman takes a nap as people line up to enter Saluki Stadium for eclipse festivities on the campus of Southern Illinois University Carbondale on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
Members of the Marching Salukis enter Saluki Stadium for eclipse festivities on the campus of Southern Illinois University Carbondale on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
Illinois Gov. Bruce Rauner implores the clouds to part as they block views of the eclipse, as seen from the press box roof of Saluki Stadium on the campus of Southern Illinois University Carbondale on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
Southern Illinois University Carbondale police officers try out the weapons from a gathering of Star Wars Stormtroopers at Eclipse Comic Con held at the student center on Sunday, Aug. 20, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com
Illinois Gov. Bruce Rauner implores the clouds to part as they block views of the eclipse, as seen from the press box roof of Saluki Stadium on the campus of Southern Illinois University Carbondale on Monday, Aug. 21, 2017. Photo by Robert Cohen, rcohen@post-dispatch.com

