The answer: Angkor Wat 1) Angkor Wat was built by Khmer King Suryavarman II (Yes. You guessed it right. It is a Tamil name) 2) He built it to worship "Vishnu" and eventually over a period of time, it became a Buddhist Temple. 3) Buddhist symbol at # 6 was intended to give that clue 4) This is built 5 KMs away from the modern Siem Reap, a recent city which picture was given in image # 3 5) Lastly, image #4, the Cambodian Flag is a clue to give the location. But you would have noticed that their flag has Angkor Wat's image right in the flag itself. I ended up giving the answer in plain sight by giving that image. There are several You Tube videos on this and it is obviously UN Heritage site. It is built over 27 years with unknown number of workers. The architecture is built to receive the cosmic energy in the best possible fashion very similar to the Pyramids in Egypt. It is one of the largest site located over several acres of land. Viswa