Though it's one of Lopburi's minor ruins, it's worth coming to see the base of what was once a huge stupa. It was built in the Dvaravati period, probably in the 12th century. The smaller stupa and collapsed ·É÷³óă³ó²Ô (assembly hall) were added in the Khmer and Ayuthaya eras, respectively.
A collection of damaged Buddha images are displayed out the back.