Eben Ice Caves, Upper Peninsula, Michigan (© Dean Pennala/Shutterstock)

Allen’s hummingbird perched on a red kangaroo paw plant (© GypsyPictureShow/Shutterstock)

‘Firefall’ on Horsetail Fall, Yosemite National Park, California (© Jeff Lewis/Tandem Stills + Motion)

Hippopotamus mother and baby, Chobe National Park, Botswana (© jacobeukman/Getty Images)

Igloo at Otaru Snow Light Path Festival, Hokkaido, Japan (© T Photography/Shutterstock)

Achaches lookout, El Valle de la Luna, Chile (© Ignacio Palacios/Getty Images)

Blue-footed booby, Galápagos Islands, Ecuador (© Tui De Roy/Minden Pictures)

The Milky Way over Zabriskie Point, Death Valley, California (© Matt Anderson Photography/Getty Images)

Ancient theater of Epidaurus in Argolis province, Greece (© George Pachantouris/Getty Images)

Lower Antelope Canyon near Page, Arizona (© AZCat/Getty Images)