Actually, they weren't really dancers, but you could pay them to get photo with them. It was a hot day, so they must have been roasting in those costumes.
Trees grow high on the stones of Ta Prohm temple. The roots grow down towards the grown, almost suffocating and crushing the stone structure underneath. Most of the temples at Angor Wat have been cleared of trees and plants. Ta Prohm has been left as it was found 150 years ago with nature taking the land back.