By Patricio Leon | Santiago, Chile

By Jim Militello | Tucson, Arizona USA

By Mario Rana | Hampton, Virginia

By Anthony Faulkner | Tucson, AZ.

By Victor Rogus | Sedona, Arizona, USA

By Sudhir Sharma | Stormville, NY

By Frank Lu | Arlington, Texas, US

By Mark Wralstad | Virginia Beach, VA, USA

By Ross Stone | Death Valley National Park, CA, USA

By Ross Stone | Death Valley NP, CA, USA

By Eliot Herman | Tucson, Arizona

By Victoria Bryhan | Corvallis, Oregon

By Tameem Altameemi | Dubai - United Arab Emirates

By Lorraine Boyd | Wappingers Falls, New York

By Mario Rana | Hampton, Virginia

By Kevan Hubbard | Teesmouth Nature Reserve ,Co Durham ,England