 The area is also included into Rattanakosin Island historical area as it used to be Thon Buri downtown (formerly capital of Thailand around 1768-1782).The major features in Siri Rat are the Faculty of Medicine Siriraj Hospital, Mahidol University, the oldest government hospital and the largest medical institution of Thailand, Wang Lang ladies market and Wat Rakhang, "Temple of the Bell", the major temple with many exquisite fine arts.Outside the area just the northern rim of Khlong Bangkok Noi, there is also the National Museum of Royal Barge, where 8 important barges are preserved and displayed.