Spin Thamour is a stone bridge located west of Ta Keo in Siem Reap. It is one of the few Khmer Empire bridges that have survived to this day. It was built on the former course of the Siem Reap River between the historical city of Angkor Thom and Eastern Barai, and it is likely that it was reconstructed in the 5th century Ten arches, featuring many reused sandstone blocks, and consisting of fourteen arches.