By Ondrej Králik | Stratenec lookout tower, Slovakia

By Hassan Dadashi Arani | Esfahan province. Iran

By Catherine Hyde | Cambria, CA, USA

By Alisa Fast | South Summerlin Nevada

By Gustavo Wilches-Chaux | Bogota Colombia

By stephen merryman | Beach City, Texas, USA

By GREG REDFERN | VIRGINIA

By Hassan Dadashi Arani | Esfahan. Iran

By matthew chin | Hong Kong

By Teresa Molinaro | Sicilian countryside, South Italy

By David Rojas | Guatemala

By Lynzie Flynn | Playa del Rey, California USA

By Stephen Montag | Livingston, New Jersey

By Paul C. Peh | Coulterville, CA, USA

By Petr Horálek | Proseč u Seče, Czech Republic

By Ragini Chaturvedi | NJ, USA