This photo was taken at Angkor Wat in Siem Reap, Cambodia.
One of the MUST DO things while visiting Siem Reap and Angkor Wat is to get up early and see the sunrise at Angkor Wat. Pretty amazing experience to see thousands of people gathering up at the edge of this pond at 5:30 am just to watch how the sun is rising behind one of the most famous temples in the world.