By Roselyn Mose | Red deer County,Alberta

By Aaron Robinson | Photographed over Hell's Half Acre Lava Field in Idaho Falls, ID USA

By Lorraine Boyd | Waterford, NY

By Raul Cortes | Monterrey, Mexico.

By David Hoskin | Morden, Nova Scotia, Canada

By Greg Feingold | Schwenksville

By Andy Mosley | Temecula CA USA

By David Hoskin | Morden, Nova Scotia, Canada

By Conrado Jocson | 35.22502° N, 87.20876° W, along TN state Hwy 64 near Lawrenceburg, TN, USA

By Lorraine Boyd | Waterford, NY

By Terry Simmons | La Veta, CO USA

By Peter Lowenstein | Mutare, Zimbabwe

By Roberto Ortu | Cabras, Sardinia, Italy

By Raul Cortes | Monterrey, Mexico.

By Carolyn Hoidal | Hendersonville NC USA

By Marcia Bower | Syracuse NY