Spean Praptos (Khmer: ស្ពានប្រាប់ទិស) is an ancient stone bridge in Cambodia. It is on the road from Angkor to Phnom Chisor, near the village of Kampong Kdei. It used to be the longest stone-arch bridge in the world. It has more than 20 arches spanning 285 ft (87m). The bridge was built in the 12th century during the reign of the Khmer emperor Jayavarman VII.