Located on the hill behind the Paro Dzong, the Ta Dzong, a 17th century watch tower, houses the national museum of Bhutan. Opened in 1968, it is the main repository of Bhutanese history in the kingdom containing fine arts, paintings, bronzes, textiles, jewelry, and handicraft sections as well as galleries of stuffed animals and butterflies from Bhutan. The stamps’ hall is very popular and displays, among others, 3-D stamps, record stamps, silken stamps, embossed stamps and the famous triangular stamps depicting the yeti. The top floor of the Museum is a chapel containing a “tree” depicting the main figures of the four religious’ schools of Mahayana Buddhism.