‘Outstanding essay on how the dimensions of the great Siva temple at Prambanan are consistent with Hindu architectural principles and astronomy. Prof   Kak has written a similar essay on the architecture of Angkor Wat as well. Prambanan and the Buddhist equivalent Borobudur, are both within a few km of Jogjakarta.'
Also see pictures of temples referred to in article - 
1. Prambanan Shiva Temple - 
2. UNESCO site and pics of same temple -
3.  Brihadesvara Temple Tamil Nadu 
4. Angkor Watt Cambodia 
To read article  click here.