By Roy Bradfield | City of Sunderland, England, UK.

By Ragini Chaturvedi | By Salzburg, Austria

By Ragini Chaturvedi | Vienna, Austria

By Idriss Dhoparee | West London, United Kingdom

By Stephanie Longo | Taylor Reservoir near Cottonwood Pass, CO USA

By Stephanie Longo | Taylor Reservoir near Cottonwood Pass, CO USA

By Stephanie Longo | Taylor Reservoir

By susmita das | west bengal, India

By susmita das | west bengal, India

By Dr Ski | Valencia Observatory Garden

By Dr Ski | Valencia Observatory

By Dr Ski | Valencia Observatory Garden

By Leslie Fay | Reiman Gardens, Ames, Iowa

By Steven Sweet | Port Credit, Mississauga, Ontario Canada

By kevan hubbard | Greenwich, London, England

By John T. Grage | Vero Beach, Florida U.S.A.