Wat Nakorn Kosa
Just on the other side of the parking lot next to the Phra Khan shrine are the ruins of a small temple called Wat Nakorn Kosa. Little more remains than a large mound where a tall prang once stood and a smaller tower that is still in relatively good shape.
The temple probably dates from the Khmer era, but it was almost certainly extensively renovated, and possibly converted from a Hindu to a Buddhist temple, in the Ayutthaya period. The temple is, in fact, named after Kosa Pan, the first ambassador of Siam to France in the seventeenth century. The ambassador may have sponsored the restoration of the temple to 'make merit' to ensure the success of his embassy.