By Peter Lowenstein | Mutare, Zimbabwe

By Alexander Krivenyshev | Fernando de Noronha, Brazil

By Helio C. Vital | Araruna, Paraíba, Brazil

By Mario Rana | Hampton, Virginia

By Catherine Hyde | Cambria, CA USA

By Kim Moss-Allen | Albuquerque, NM

By Alan Howell | Albuquerque, NM

By Hassan Dadashi . arani | Hamadan . Iran

By Mohammad Adeel | Lahore, Punjab, Pakistan

By Gadi Eidelheit | Israel

By Andrea Boyle | Crater Lake National Park, Oregon

By Smita Parida | Mountainair, New Mexico, USA

By Charlie Seligman | Harper, Texas, USA

By Christine Ho | Bryce Canyon National Park, Utah, USA

By Doug Short | Clermont, Florida, USA

By Barry Medlin | Hahira, GA