The natural towers in our image are made of soft tuff, formed from hardened volcanic ash. Here in CappaThe natural towers in our image are made of soft tuff, formed from hardened volcanic ash. Here in ...

Loch Leven, Glencoe, Scotland© ALBAimagery / iStock / Getty Images ...

A quartet of young white-breasted cormorants make their way across the sands of Robberg Nature Rese.. See more ...

The ancient Nabataeans entered and exited their capital, Petra, through a narrow gorge near this spo.. See more ...

to go backBrown bear and cub, Finland ...

to go backMarimurtra Botanical Garden, Spain ...

There’s a forest of sorts below the surface of Five Flower Lake: Ancient fallen trees crisscross the lakThere’s a forest of sorts below the surface of Five Flower Lake: Ancient fallen trees crisscross ...

Cherry blossoms in Fujiyoshida, Japan© Stockbym / Shutterstock ...

The Palouse region of the inland Pacific Northwest is an unusually hilly prairie that straddles the state linThe Palouse region of the inland Pacific Northwest is an unusually hilly prairie that ...

Located where the flat plains of Canada's Prairie Provinces give way to the sharply rising Canadian RLocated where the flat plains of Canada's Prairie Provinces give way to the sharply rising Canadian ...

National parks abound in Alajuela, an ecologically rich province in northern Costa Rica. And within tho.. See more ...

Nicknamed ‘Thousand Islands,’ this archipelago on the St. Lawrence River at the border of the United .. See more ...