By Kevin Colton | Escalante National Monument Devil’s Garden

By Hassan Dadashi . arani | Hamadan . Iran

By Roberto Adam | Campeche, Mexico

By Frank Lu | Arlington, Texas, USA

By Clay Davis | Pigeon Forge, TN

By David Shull | Elloree, South Carolina

By Cecille Kennedy | Sijota Creek, Oregon

By Charlie Gaskill | Tucson, AZ, USA

By Howard Cohen | Gainesville, FL, United States

By Param Sharma | Marshfield , WI

By Candace Kronish | Deer Isle Maine

By Harry Davis | West side of Franklin Mountain, El Paso, TX

By Rajat Kumar Pal | Monument Valley, Utah

By Victoria Bryhan | Corvallis Oregon

By Mimi Ditchie | See Canyon near Avila Beach, California

By Robert Pettengill | Eldorado, Texas