By Travis Tracey | Pogue Creek Canyon, IDA Park in Tennessee

By Michael Terhune | Warren NH USA

By Rachel Blaser | Mt. Laguna, CA, USA

By Ken Chan | Palo Alto, CA, USA

By Niccole Neely | Wickenburg, AZ

By Patrice Duffy | Hawk Nest in Port Jervis, New York

By Alice Martinez | 70 Miles SW of Dallas

By Deborah Peters | Thousand Oaks, California, USA

By Celeste Echlin | Sheffield, MA

By Deborah Peters | Thousand Oaks, California, USA

By Deborah Peters | Thousand Oaks, California, USA

By Bryan Dahlvang | El Reno Regional Airport, El Reno, OK

By Vasu Jagannathan | The Tidal Basin in Washington D.C..

By Vasu Jagannathan | The Tidal Basin in Washington D.C.

By Thomas Winstone | Elan Valley, mid Wales, UK

By Jeroen van Strien | Lake Easton (Washington state)