Spring Point Ledge Light in South Portland, Maine

Salt flats in San Francisco Bay

Edinburgh city skyline at night, Scotland

Farmers collecting water lilies in the Satla marshland near Bagdha, Barisal, Bangladesh

Red-necked grebes in Germany

The Hickman Bridge at Capitol Reef National Park, Utah

An active lava tube, Hawai'i Volcanoes National Park, Hawaii

Noctilucent clouds in Lithuania

Rainforest hike near Milford Sound/Piopiotahi in New Zealand

Tigresses of Telia Lake in Tadoba Andhari Tiger Reserve, India

Longs Peak in Rocky Mountain National Park, Colorado

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