Blue-Green Algae bloom, Lake Erie, US

Northern Lights over Tallinn

Three Sisters, Blue Mountains World Heritage area NSW Australia

Milford Sound, New Zealand

Lagos, Portugal

Kaaterskill Falls

Rainbow at Yellowstone

Zhangjiajie National Forest Park, China 3

Crimean night

Half Dome, Yosemite

Nauyaca Falls, Costa Rica

Tidal Glacier - Kenai Fjords National Park, Alaska

Vermillion Lake near Mt Rundle, Alberta