Wat Nakhon Kosa

Wat Nakhon Kosa is a ruined temple in the old town of Lopburi, standing right beside the railway station. What makes it unusual is its layering of three eras in one site: a large Dvaravati-period chedi, a Khmer-style prang from Lopburi’s centuries under the Khmer Empire, and vihara ruins from the Ayutthaya period. It’s free, central, and a quick, rewarding stop for anyone interested in how Lopburi’s history stacks up in stone.

What you’ll see

The ruins read as a timeline. The oldest element is the big chedi, from the Dvaravati era (7th–11th century), when the region absorbed strong Indian influence. The Khmer-style prang came next, during the 11th–13th centuries when Lopburi answered to Angkor — look for the carving of a standing Buddha still visible on its side, and the traces of deity images later reworked into Buddha figures. The vihara ruins date from the Ayutthaya period, when King Narai the Great made Lopburi his second capital and restored the temple. Wild grass and shade trees grow between the laterite, and the site sees far fewer visitors than Lopburi’s headline monuments.

Insider Tip: Arrive by train — the ruins are a five-minute walk north along the tracks from Lopburi station, so they make a perfect first or last stop, bags in hand, without needing any transport.

Visiting

It’s free and always open, on public ground beside the station and near the Phra Kan Shrine — one of the spots where Lopburi’s famous macaques gather. Twenty to thirty minutes covers it, easily folded into a wider walk around the old town.

Watch out: Lopburi’s monkeys are bold around the station and Phra Kan Shrine — don’t carry visible food or loose bags, and keep a hand on sunglasses and phones.

Wat Nakhon Kosa is at Tha Hin, Mueang Lop Buri District, Lop Buri 15000. View on Google Maps.