Wat Sema or the "Monastery of the Boundary Stone" was located off the City Island in the eastern area at Tambon Phai Ling. The temple is located in the vicinity of Wat Yai Chai Mongkhon just outside the boundary of the Ayutthaya Provincial sport complex. Wat Fai Mai lied to its north, while Wat Maha Thalai stood to its south.
The last traces of Wat Sema are close to disappear. Only a small part of the wall is remaining, next to a recently set-up small commemoration vihara. Part of the foundation of a chedi is situated a few meters to the east, on private property. The monastery was likely accessible through an ancient canal system, that now has disappeared.
Historical data about this monastery and its construction are not known; however, the Fine Arts Department lists other temples in this area as from the Middle Ayutthaya period.
Text & photographs by Tricky Vandenberg - October 2009