Skeleton figures (calacas) dressed up for Día de los Muertos celebrations in Mexico (© Amelia Fuentes Marin/Getty Images)(Bing United States)

The Hughes H-4 Hercules, aka the Spruce Goose, November 1947, Long Beach Harbor, California (© J R Eyerman/Shutterstock)(Bing United States)

Mount Kilimanjaro with Cape buffaloes in foreground, Amboseli Biosphere Reserve, Kenya (© RealityImages/Shutterstock)(Bing United States)

Depiction of deities from the Tomb of Tutankhamun at the Egyptian Museum, Cairo, Egypt (© Stefan Lippmann/Universal Images Group via Getty Images)(Bing United States)

Tigh Mor Trossachs on Loch Achray, Scotland (© Fortunato Gatto/eStock Photo)(Bing United States)

Runners in the 1990 New York City Marathon crossing the Verrazzano-Narrows Bridge (© David Madison/Getty Images)(Bing United States)

Lunar eclipse above Mount Crested Butte, Colorado (© Mengzhonghua Photography/Getty Images)(Bing United States)

Sky lanterns take flight during the Yi Peng Festival in Chiang Mai, Thailand (© Suttipong Sutiratanachai/Getty Images)(Bing United States)

European hedgehog in Sussex, England (© Jules Cox/Minden Pictures)(Bing United States)

Rock formations in Badlands National Park during a lightning storm, South Dakota (© DEEPOL by plainpicture)(Bing United States)

The Vietnam Women's Memorial in Washington, DC (© Cvandyke/Shutterstock)(Bing United States)

Bald eagles near Haines, Alaska (© Marion Vollborn/Minden Pictures)(Bing United States)

The Punch Bowl on the River Quoich in the Cairngorms, Aberdeenshire, Scotland (© AWL Images/Danita Delimont)(Bing United States)

Ruins of the medieval castle of the Knights of St. John above the village of Chorio, Halki Island, Greece (© Massimo Ripani/eStock Photo)(Bing United States)

North American river otters swimming in Acadia National Park, Maine (© George Sanker/Minden Pictures)(Bing United States)

Cliff dwellings in Mesa Verde National Park, Colorado (© Brad McGinley Photography/Getty Images)(Bing United States)

Bridge on the McKenzie River Trail, Willamette National Forest, Oregon (© Don Paulson/Danita Delimont)(Bing United States)

The gates of the Royal Palace (Dar al-Makhzen) in Fez, Morocco (© Adam Smigielski/Getty Images)(Bing United States)

Virgin River in Zion National Park, Utah (© Jonathan Ross/Getty Images)(Bing United States)

'World in Progress II,' a land art painting by Saype, United Nations Headquarters, New York City (© Valentin Flauraud/Shutterstock)(Bing United States)

Ahmad Bin Ali Stadium in Doha, Qatar (© Qatar 2022/Supreme Committee via Getty Images)(Bing United States)

Red fox in Amsterdamse Waterleidingduinen Nature Reserve, Netherlands (© Edwin Giesbers/Minden Pictures)(Bing United States)

Sunflower (© Dileep Chandran/Alamy)(Bing United States)

Cranberry bog (© SHSPhotography/Getty Images)(Bing United States)

Monks Mound at the Cahokia Mounds UNESCO World Heritage Site near Collinsville, Illinois (© Matthew Gush/Alamy)(Bing United States)

An olive tree in front of the Temple of Concordia on the island of Sicily, Italy (© Alfio Finocchiaro/Shutterstock)(Bing United States)

Cecropia leaf atop lobster claw petals, Mexico (© Gerry Ellis/Minden Pictures)(Bing United States)

Mars (© NASA/Alamy)(Bing United States)

Great blue herons building a nest in Wakodahatchee Wetlands, Delray Beach, Florida (© Imagebroker/Alamy)(Bing United States)

The Old Town of Rovinj, Croatia (© trabantos/Shutterstock)(Bing United States)