Karima, Sudan
Reichsburg Castle, Germany
Hercules Grotto
Tangier, Morocco
submitted by: serrkarasu, thanks!
Gjrokasta Castle, Albania
Kavala, Greece 
Potsdam, Germany
Sidi Bou Said, Tunisia
submitted: underjules@yahoo.com
Izmir, Turkey
Cueva Ventana-Arecibo, Puerto Rico 
submitted by: http://gohideandseek.tumblr.com, thanks!
Opaque  by  andbamnan