claim: Prague's historic center was first included in the UNESCO list of World Heritage Sites in 1937.
evidence: Mount Mau Son is a mountain in Loc Binh District , Lang Son Province , in northeastern Vietnam .. Vietnam. Vietnam. Loc Binh District. Loc Binh District. Lang Son Province. Lang Son Province. Lang Son. Lang Son. It is located about 170 km northeast of the Hanoi and about 30 km east of Lang Son City close to the international border between Vietnam and China .. Vietnam. Vietnam. Hanoi. Hanoi. Lang Son. Lang Son. China. China. The highest peak of Mount Mau Son reaches about 1,600 m above sea level .. Mount Mau Son was originally settled by the Yao people .. Yao people. Yao people. In the early 20th century , the French built a military base on the mountain followed by a cluster of villas in 1936 .. French. Cochinchina. The French installations on Mount Mau Son have since fallen into disrepair and only ruins remain of the original buildings .. French. Cochinchina. The mountain now contains several guest houses built to resemble French villas , some are abandoned , but a few still remain operational as of May 2017 .. French. Cochinchina. The top of the mountain is a popular picnicking location with locals who come there to take photographs on the mountain top .