Boardwalk Trail at Corkscrew Swamp Sanctuary in Florida

The Jacobite steam train crossing the Glenfinnan Viaduct in Inverness-shire, Scotland

Manatee in Florida

First Cliff Walk on First near Grindelwald, Switzerland

Aerial view of El Tajo gorge and the Puente Nuevo bridge in Ronda, Málaga, Spain

Beavers Bend Resort Park near Broken Bow, Oklahoma

Sailors on the amphibious assault ship USS Iwo Jima on New York's Hudson River during Veterans Week, 2016

Cumberland Island National Seashore, Georgia

Ancient rock tombs carved into the cliff near Dalyan, Turkey

Polar bear investigating a camera, Churchill, Manitoba, Canada

Mack Arch Rock at sunrise on the southern Oregon coast

Female numbat in Brookton, Western Australia