Summit of Mount Everest at sunset, seen from Renjo La, Nepal (© shoults/Alamy)

Interior of the Mosque-Cathedral of Córdoba, Andalusia, Spain (© Elena Zolotova/Getty Images)

Guanaco in Punta Norte, Argentina (© Sylvain Cordier/naturepl.com)

Christmas lights in Domaso, Lake Como, Italy (© Roberto Moiola/Getty Images)

USS Arizona Memorial, Pearl Harbor, Honolulu, Hawaii (© Jessica O. Blackwell/APFootage/Alamy)

Spider webs in Everglades National Park, Florida (© Troy Harrison/Getty Images)

Maya site of Copán, Honduras (© diegograndi/Getty Images)

Cheetah in Maasai Mara National Reserve, Narok, Kenya (© Andy Rouse/naturepl.com)

Sandhill cranes at sunrise, Bosque del Apache National Wildlife Refuge, New Mexico (© Jack Dykinga/Minden Pictures)

Willow Lake and Mount Blackburn, Wrangell-St. Elias National Park and Preserve, Alaska (© Patrick J. Endres/Getty Images)