Video of Ayutthaya Highlights at bottom of this page :
Wat Mahathat (early) - Famous Buddha Head in tree, lots of ruins.
Wat Ratchaburana (early) - Impressive main prang, large compound.
Wat Phra Si Sanphet (middle period) - Three large Chedis
Wat Yai Chai Mongkol (chedi middle period) - Large Chedi, Reclining Buddha
Wat Chai Wattanaram (late period) - Most impressive Prang and Towers
Wat Phutthai Sawan (early) - Whitewashed prang, Reclining Buddha
Wat Na Phramen (late) - Interesting old Buddha Images
Wat Choeng Tha (late) - Prang, interesting quiet site.
Wat Suwan Dararam ('modern period') - Very interesting Mural Paintings
Add-on : Pictures of Bangpa-In Palace