Moai statues on Easter Island, Chile (© Ocean/Corbis)(Bing United States)

Stari Most (Old Bridge) over the Neretva river in Mostar, Bosnia and Herzegovina (© Gavin Hellier/Corbis)(Bing United States)

Aerial view, wheat field stubble burn, Kansas (© Harald Sund/Getty Images)(Bing United States)

Glacier-fed lake, South Island, New Zealand (© picturegarden/Getty Images)(Bing United States)

Farquar Lake in Apple Valley, Minnesota (© Justin Heglund/Getty Images)(Bing United States)

Sculpted boxwoods at the Château de Marqueyssac in Vézac, France (© Peet Simard/Corbis)(Bing United States)

View of eroded cliffs from Zabriskie Point, Death Valley National Park, California (© Dennis Frates /Alamy)(Bing United States)

Male ruff in breeding plumage, Norway (© Werner Bollmann/age fotostock)(Bing United States)

Palm trees growing on a savanna, Madagascar (© Frans Lanting/Corbis)(Bing United States)

American black bear cubs in Jasper National Park, Alberta, Canada (© Don Johnston/All Canada Photos/Corbis)(Bing United States)

Aerial view of Ocean Drive in Newport, Rhode Island (© Massimo Borchi/4Corners)(Bing United States)

Round-leaved sundew (Drosera rotundifolia) tentacles (© Klaus Honal/Superstock)(Bing United States)

Temple bells and chimes, Chiang Mai, Thailand (© WIN-Initiative/Getty Images)(Bing United States)

Central Park, New York City (© Jon Arnold/Corbis)(Bing United States)

Vrtba Garden in Prague, Czech Republic (© William Manning/Corbis)(Bing United States)

Sipapu Bridge in Natural Bridges National Monument, Utah (© George H. Huey/Superstock)(Bing United States)

Visitors descending the spiral stairs of the Vatican Museums, Vatican City (© Getty Images)(Bing United States)

Western lowland gorilla female in a cloud of butterflies (© Anup Shah/Corbis)(Bing United States)

Oia at sunset on Thíra (Santoríni), Greece (© John C. House/Getty Images)(Bing United States)

The Milky Way stretches over the Quiver Tree Forest, Namibia (© Florian Breuer/NASA)(Bing United States)

A Pacific pink scallop in the Pacific Ocean, British Columbia, Canada (© Marty Snyderman/Corbis)(Bing United States)

Composite image of Earth at night from space (© Robert Simmon/NASA)(Bing United States)

Upper Antelope Canyon in the Navajo Nation near Page, Arizona (© Roy Zipstein/360cities.net)(Bing United States)

Alishan National Scenic Area, Chiayi County, Taiwan (© Kyle Lin/Getty Images)(Bing United States)

Hall of Memory, Australian War Memorial in Canberra, Australia (© Tom Harradine/Alamy)(Bing United States)

Gifford Pinchot National Forest, Washington (© Art Wolfe/Getty Images)(Bing United States)

Detail of a steam turbine in an electricity-generating power plant (© Monty Rakusen/Aurora Photos)(Bing United States)

Baltimore skyline and the Inner Harbor, Maryland (© Greg Pease/Getty Images)(Bing United States)

Butterflies in Kaeng Krachan National Park, Thailand (© Getty Images)(Bing United States)

Preservation Hall, French Quarter, New Orleans, Louisiana (© Cosmo Condina/Superstock)(Bing United States)