Fishing lodges on the Tree River in the Kitikmeot Region of Nunavut, Canada (© Jason Pineau/Getty Images)(Bing United States)

Fishing lodges on the Tree River in the Kitikmeot Region of Nunavut, Canada (© Jason Pineau/Getty Images)(Bing United States)

Portage Lake in Chugach National Forest, Alaska (© Ron Niebrugge/Alamy)(Bing United States)

Portage Lake in Chugach National Forest, Alaska (© Ron Niebrugge/Alamy)(Bing United States)

Sand pattern made by a pufferfish near Amami Ōshima, Kagoshima, Japan (© Yoji Okata/Minden Pictures)(Bing United States)

Sand pattern made by a pufferfish near Amami Ōshima, Kagoshima, Japan (© Yoji Okata/Minden Pictures)(Bing United States)

Great Sand Dunes National Park and Preserve, Colorado (© Ian Shive/Tandem Stills + Motion)(Bing United States)

Great Sand Dunes National Park and Preserve, Colorado (© Ian Shive/Tandem Stills + Motion)(Bing United States)

Market Hall in Rotterdam, Netherlands (© Tetra Images/Offset)(Bing United States)

Market Hall in Rotterdam, Netherlands (© Tetra Images/Offset)(Bing United States)

The Temple of Jupiter and Mount Vesuvius, Pompeii, Italy (© Design Pics Inc/REX/Shutterstock)(Bing United States)

The Temple of Jupiter and Mount Vesuvius, Pompeii, Italy (© Design Pics Inc/REX/Shutterstock)(Bing United States)

A coral reef in the Red Sea near Egypt (© cinoby/iStock/Getty Images)(Bing United States)

A coral reef in the Red Sea near Egypt (© cinoby/iStock/Getty Images)(Bing United States)

Owlman of the Nazca Lines in Peru (© Laura Fafone/Getty Images)(Bing United States)

Owlman of the Nazca Lines in Peru (© Laura Fafone/Getty Images)(Bing United States)

Rio de Janeiro, seen from Sugarloaf Mountain, Brazil (© Juan Carlos Ruiz/500px)(Bing United States)

Rio de Janeiro, seen from Sugarloaf Mountain, Brazil (© Juan Carlos Ruiz/500px)(Bing United States)

Playa de Las Teresitas at San Andrés, Tenerife, Canary Islands, Spain (© Cornelia Doerr/age fotostock)(Bing United States)

Playa de Las Teresitas at San Andrés, Tenerife, Canary Islands, Spain (© Cornelia Doerr/age fotostock)(Bing United States)

Common kingfishers perched on a camera lens (© Sijanto/Getty Images)(Bing United States)

Common kingfishers perched on a camera lens (© Sijanto/Getty Images)(Bing United States)

Fort Jefferson in Dry Tortugas National Park, Florida (© Miami2you/Shutterstock)(Bing United States)

Fort Jefferson in Dry Tortugas National Park, Florida (© Miami2you/Shutterstock)(Bing United States)

A red pincushion bloom at Kirstenbosch National Botanical Garden, Cape Town, South Africa (© Mint Images/Frans Lanting)(Bing United States)

A red pincushion bloom at Kirstenbosch National Botanical Garden, Cape Town, South Africa (© Mint Images/Frans Lanting)(Bing United States)

Maria Lenk Aquatics Center, Rio de Janeiro, Brazil (© Buda Mendes/Getty Images)(Bing United States)

Maria Lenk Aquatics Center, Rio de Janeiro, Brazil (© Buda Mendes/Getty Images)(Bing United States)

A Eurasian lynx in Šumava National Park, Czech Republic (© Niall Benvie/Minden Pictures)(Bing United States)

A Eurasian lynx in Šumava National Park, Czech Republic (© Niall Benvie/Minden Pictures)(Bing United States)

Tea plantation in Kericho County, Kenya (© Yann Arthus-Bertrand/Getty Images)(Bing United States)

Tea plantation in Kericho County, Kenya (© Yann Arthus-Bertrand/Getty Images)(Bing United States)

Matterhorn, Switzerland (© Markus Eichenberger Photo & Film Productions/Nimia)(Bing United States)

Matterhorn, Switzerland (© Markus Eichenberger Photo & Film Productions/Nimia)(Bing United States)

Elephants in Addo Elephant National Park, South Africa (© Johan Swanepoel/Alamy)(Bing United States)

Elephants in Addo Elephant National Park, South Africa (© Johan Swanepoel/Alamy)(Bing United States)

Palm trees over Maho Bay, Virgin Islands National Park (© Shutterstock)(Bing United States)

Palm trees over Maho Bay, Virgin Islands National Park (© Shutterstock)(Bing United States)

Smithsonian touring exhibition at the 1904 St. Louis World’s Fair (© Bygone Collection/Alamy)(Bing United States)

Smithsonian touring exhibition at the 1904 St. Louis World’s Fair (© Bygone Collection/Alamy)(Bing United States)

Rio de Janeiro including Maracanã Stadium illuminated at night, Brazil (© Corey Jenkins/Alamy)(Bing United States)

Rio de Janeiro including Maracanã Stadium illuminated at night, Brazil (© Corey Jenkins/Alamy)(Bing United States)

Mar Saba monastery overlooking the Kidron Valley, Jerusalem, Israel (© Roman Pesarenko/500px)(Bing United States)

Mar Saba monastery overlooking the Kidron Valley, Jerusalem, Israel (© Roman Pesarenko/500px)(Bing United States)

Chicago Harbor Light on Lake Michigan (© Tim Klein/Gallery Stock)(Bing United States)

Chicago Harbor Light on Lake Michigan (© Tim Klein/Gallery Stock)(Bing United States)

Saxon Switzerland National Park, Germany (© Andreas Vogel/500px)(Bing United States)

Saxon Switzerland National Park, Germany (© Andreas Vogel/500px)(Bing United States)

Fireworks over Maracanã Stadium in Rio de Janeiro, Brazil (© Buda Mendes/Getty Images)(Bing United States)

Fireworks over Maracanã Stadium in Rio de Janeiro, Brazil (© Buda Mendes/Getty Images)(Bing United States)

Jesup Path in Acadia National Park, Maine (© Pat & Chuck Blackley/Alamy)(Bing United States)

Jesup Path in Acadia National Park, Maine (© Pat & Chuck Blackley/Alamy)(Bing United States)

Sun setting in Dartmoor National Park, Devon, England (© Jonathan Scott/Nimia)(Bing United States)

Sun setting in Dartmoor National Park, Devon, England (© Jonathan Scott/Nimia)(Bing United States)

Harbin Opera House in Harbin, China (© Hufton and Crow/VIEW Pictures Ltd/Alamy)(Bing United States)

Harbin Opera House in Harbin, China (© Hufton and Crow/VIEW Pictures Ltd/Alamy)(Bing United States)

African lionesses in Masai Mara National Reserve, Kenya (© Daniel J Cox/Getty Images)(Bing United States)

African lionesses in Masai Mara National Reserve, Kenya (© Daniel J Cox/Getty Images)(Bing United States)