By Stephanie Becker | Mount Diablo, SF Bay Area

By Belinda Sellari | Brownsville, TN, USA

By John Dvorak | Hawaii Volcanoes National Park, Hawaii

By Brandi Mullins | Ferrum, Virginia

By Carl Gray | White Hills, AZ, USA 35.71070 -114.32096

By Mohamed Farouk | Cairo, Egypt

By Soumyadeep Mukherjee | Kolkata, India

By Filipp Romanov | Yuzhno-Morskoy, Nakhodka, Russia

By Stéphane Picard | Irving Nature Park, Saint John, New Brunswick, Canada

By SAMIT SAHA | Bidada, Gujarat, India

By Emily Crowell | Nashville, TN, USA

By Tony Everhardt | Scotch Ridge, Ohio

By David Hawkes | Sheffield, UK

By ahmed khater | El Delengat, El buhira, Egypt

By Kartik Kota | Wales, United Kingdom

By Hassan Dadashi . Arani | Esfahan. Iran