Pu Vap historical site is located in Song Da ward and Lay Nua commune, Muong Lay town, Dien Bien province, at an altitude of about 1,260 meters above sea level.
Built around 1948, Pu Vap was once a resort of "Thai King" Deo Van Long. This area has a cool climate all year round, beautiful scenery, with architecture bearing strong French influences, including two rows of solid three-room houses, built with bricks, terracotta and roofed with five-colored split stones.
In addition to its function as a resort, Pu Vap was also used to imprison and torture patriotic activists against French colonialism. Currently, although many parts of the structure have been damaged over time, Pu Vap is still a valuable historical relic, contributing to educating the younger generation about patriotism and is a potential destination for tourism development.