An aerial view of the sheer limestone cliffs and the Twelve Apostles pillars. Keen

An aerial view of the sheer limestone cliffs and the Twelve Apostles pillars. KeenAn aerial view of the sheer limestone cliffs and the Twelve Apostles pillars. Twelve Apostles, Port Campbell National, Great Ocean Road, Victoria, Australia.

An enormous thunderhead delivers a deluge of rain over the vast savannah of the Serengeti

Near Lake Naivasha

Teenage girls from an orphanage silhouette on the horizon of a farm at sunset

Nanuya Balavu Island

An Antarctic Fur Seal clambers out of the ocean onto an iceberg

Mount Everest

A colorful Common Bronzewing Pigeon pears curiously at the camera

Raindrops on the leaves of Giant Reed

A spotted hyena marks its territory on the grassy savannah plain by urinating

A heavily scaled and armored head of a submerged Saltwater Crocodile

Lion's Head

A wind-rippled sand dune in the Little Sahara Desert