By matthew chin | Hong Kong

By Helio C. Vital | Rio de Janeiro, Brazil

By Mario Rana | Hampton, Virginia

By David Hoskin | Halifax, Nova Scotia, Canada

By Paul Kimmelman | Skyway Bridge - St. Petersburg FL.

By Dan Bush | Albany, Missouri, USA

By Shruti Mehta | Mumbai, India

By Hassan Dadashi . arani | Natanz . Iran

By Eliot Herman | Nome Alaska

By KATHIE O'DONNELL | DEVIL'S TOWER NATIONAL MONUMENT

By Laura Penn | Tintagel, UK

By Steve Pond | East Grinstead, Sussex, UK

By Leann Siembab Cormier | Westbrook, Connecticut

By Sudhir Sharma | Stormville, NY

By Padraic Koen | Balaklava, South Australia, Australia

By Hassan Dadashi . arani | Natanz . Iran