By Cecille Kennedy | Boiler Bay State Park, Oregon

By Hassan Dadashi . arani | Esfahan . Iran

By Steve Price | Kemmerer, Wyoming, Fossil Quarry

By Raul Cortes | Monterrey, Mexico.

By Patricio Leon | Santiago, Chile

By ABDUL A THOMAS | Malton

By Mohammad Adeel | Makhad, Kalabagh, Punjab, Pakistan

By Sudhir Sharma | Stormville, NY

By Ron Andersen | Wawona Hotel, Yosemite National Park, California, USA

By Kathie O'Donnell | Badlands National Park

By Lorraine Boyd | Crown Point, Lake Champlain, New York

By Hassan Dadashi . arani | Esfahan . Iran

By Harshwardhan Pathak | IC Astronomy Observatory, Spain

By Miguel Ventura | Lodões - Vila Flor - Portugal

By Soumyadeep Mukherjee | Kolkata, India

By JOSE PALMA | Mina São Domingos , Mertola , Portugal