Phimai is the largest Khmer temple in Thailand, and the complex is over 1,000 metres long and almost 600 metres wide. Phimai, unlike most Khmer temples, faces south rather than east, but historians still don't know why. The site is oriented towards Angkor Wat as its cardinal direction.
You enter the complex from the south, crossing the Naga Bridge, named after the statues of snake-like mythological beings guarding the entrance. The large building to the west is thought to have been a rest house used by the king in preparation for religious ceremonies.