The sky in the ground. Yellowstone National Park

Erosion on the slopes of a volcano near Ankisabe, Madagascar

Greenland is icy

Southern China

Mountains of Vietnam in Paksan, Laos

Colgate University in the fall

Irish Moss Bridges

Durdle Door, Jurassic Coast

Jiuzhaigou Valley, China

Cabos San Lucas, Mexico

Grand Canyon view

Cala Dogana, Levanzo, Italy

McKay Falls on California's Coast