Ice climber ascending a frozen waterfall in Telluride, Colorado (© Brian Bailey/Getty Images)

Marjorie McNeely Conservatory at Como Park in St. Paul, Minnesota (© Joe Mamer/Age footstock)

Horseshoe Bend, Arizona (© Robert Fanfant)

One of the groundhogs at Brookfield Zoo in Brookfield, Illinois (© Tim Boyle /Getty Images)

The Oregon Convention Center in Portland, Oregon (© Janis Miglavs/Danita Delimont)

Sunset over Santa Monica Beach, California (© Clipcanvas)

Jackson Square in New Orleans, Louisiana (© Randy Faris/Corbis)

New River Gorge Bridge near Fayetteville, West Virginia (© Timothy Mainiero/age fotostock)

Florida manatee in the Crystal River, Florida (© Wayne Lynch/Corbis)

Grand Canyon National Park, Arizona (© Jean-Pierre Lescourret/SuperStock)

“Sweet Motion of the Northern Lights,” a multi-block sculpture at the 2007 World Ice Art Championship in Fairbanks, Alaska (© Patrick Endres/Getty Images)

Hug Point on the Oregon coast (© Tanmay Ganacharya)

Ramstead’s sled dog team during the 2005 Iditarod Great Sled Race in Alaska (© AlaskaStock/Photolibrary)

Hartford skyline, Connecticut, U.S.A. (© Enzo Figueres/Getty Images)

Little Tahoma peak in the background with wildflowers in the Upper Paradise Valley of Mt. Rainier National Park, Washington (© Stephen Matera)

Mexican free-tailed bats in the sky above Austin, Texas (© imagebroker.net/SuperStock)

Thunderstorm over the prairie in Montana (© Artbeats)

Cherry blossoms frame the Jefferson Memorial in Washington, D.C. (© Degree/eStock Photo)

Willets in J. N. “Ding” Darling National Wildlife Refuge on Sanibel Island, Florida (© Bill Gozansky/age fotostock)

Texas bluebonnets on railroad tracks, Texas (© Jeremy Woodhouse/Corbis)