If you like that kind of thing and you're ever in Kenya (I know its not in Asia) then it's worth visiting Gedi. The ruins in the baobab Jungle are really spooky and impressive. http://en.wikipedia.org/wiki/Ruins_of_Gedi
"Good judgment comes from experience. Experience comes from bad judgment." - Mulla Nasrudin
I am looking forward to a trip to Thailand in February. We'll be seeing Ankor Wat and Ayutthaya as part of our journey. Do you have any recommendations for other places to visit? We always try to get to all of the UNESCO World Heritage sites when we go on our trips. But, some of the best places are off the beaten track.