Blue-Green Algae bloom, Lake Erie, US

North Antarctica

Monti Sibillini, Italy

Victoria Falls - Zambia, Zimbabwe

Blue River, Greenland

An island in Georgian Bay, Ontario (1024x768)

Northern lights over Sarkofagen, Svalbard, Norway - Autumn 2011

Between Geiranger and Stryn, Norway

Lake Wakatipu, New Zealand ─

Val Di Funes, Italy

Zion National Park, Utah

Mount Damāvand, Iran -

Peyto Lake, Alberta