Nabataean tomb in Mada'in Saleh (aka Hegra), Saudi Arabia

Mangrove forest in the Saloum Delta National Park, Senegal

Golden Gallopers Carousel on the seafront in Brighton, East Sussex, England

Amelia Earhart teaching students in Newark, New Jersey

Elephant hawk-moth on foxglove flower

Our Lady of the Rocks and Saint George Island in the Bay of Kotor, Perast, Montenegro

Abbey Gardens in Bury St Edmunds, Suffolk, England

Composite photo showing the phases of the moon

Male American bison in Yellowstone National Park, Wyoming

Omijima Island in Kita-Nagato Kaigan Quasi-National Park, Japan

The Wave sandstone formation in Coyote Buttes North, Paria Canyon-Vermilion Cliffs National Monument, Arizona

Goldfinch on a sunflower in McConnells, South Carolina

The village of Arrone in Umbria, Italy

Baby lemon sharks swimming among mangroves near Alice Town, Bimini, Bahamas

Basalt columns of Giant's Causeway, Northern Ireland

Bay Marker Lookout, Sydney Olympic Park, Australia

Barcelona, Spain

Aerial view of colorful boats in the Mediterranean Sea in Ölüdeniz, Turkey

Dolomite Mountains at night with the Milky Way, Italy

Preveli Gorge with river and palm tree forest, Crete, Greece