Ayutthaya sits at the confluence of the Chao Phraya, Lopburi, and Pa Sak, about eighty kilometres north of Bangkok. The train from Hua Lamphong or Bang Sue is the honest way in; buses and tours do the same run with less air. The historic city is an island of brick prangs, sitting Buddhas, and bicycle loops. Hire a bike near the station. The sites are scattered. A tuk-tuk day is the hot-season version of the same map.
How a river capital fell
Ayutthaya was the Siamese capital from 1351 until 1767, a trading city that dealt with the Chinese, the Japanese, the Dutch, and the French. At its height it was one of the largest cities on earth. The Burmese sack of 1767 burned it. The court moved south, and Bangkok was founded as the new centre. What you walk through is the wreck of that move: laterite and brick towers, a reclining Buddha under a corrugated roof, trees growing through walls that were once palaces.
Wat Phra Si Sanphet was the royal temple inside the palace compound, three Sri Lankan-style chedis in a row. Wat Mahathat is the one with the Buddha head in the fig roots — a photograph that has done more for the site than any inscription. Wat Chaiwatthanaram on the west bank is a Khmer-inspired prang built by Prasat Thong. UNESCO listed the historic city in 1991. The modern town wraps the ruins. You eat in the new streets and walk in the old ones.
Why people leave Bangkok for a ruin
It is popular because it is the readable version of Thai history before Bangkok, because it is a day trip, and because the scale is still surprising: this was a capital, not a village with a stupa. Sunrise at Wat Chaiwatthanaram is the postcard. Midday is brick and glare. The river boats that loop the island give you the plan of the city as water, which is how it was meant to be seen.
Do not expect Angkor. The stone here is brick, the jungle is tamer, and the town is Thai and ordinary. That is the point. Ayutthaya is a living province with a ruin in the middle, not a sealed archaeological park.
If you go
Start early, bike the island, pick three temples, not ten. Wat Phra Si Sanphet, Wat Mahathat, and Chaiwatthanaram are enough. Modest dress at the active wats. Do not stack this with a same-day Grand Palace morning unless you like two capitals and no time in either. The train back in the late afternoon is cooler than the bus. The head in the roots is a short stop; the river is the rest of the day.
