By Earll Johnson | Davis Strait, south of Greenland (from a plane window)

By Stephen Montag | Livingston, NJ

By Ross Stone | North Lake, Bishop, CA, USA

By Patricio Leon | Santiago, Chile

By Roberto Ortu | Cabras, Sardinia, Italy

By Mark Moser | Hickory, NC

By Michael Holland Sr | Lakeland, Florida

By Rounak Mohanty | Cuttack, Odisha, India

By Stanley Holz | Bluffton, SC, USA

By Patricio Leon | Santiago, Chile

By Rui Santos | Amor, Leiria - Portugal

By Elmarie van Rooyen | Smoky Lake

By Lorraine Boyd | Delmar, New York

By Jim Militello | Tucson, Arizona USA

By Sheryl R Garrison | Waterton Lakes National Park, AB Canada

By Patricio Leon | Santiago, Chile