Though a part of the land is taken by the building of the Bank of Thailand, Wang Bang Khun Phrom residence is well maintained. This excellent-proportion place used to be the residence of a Prince of King Rama V. It is now used as a museum of Thai Monetary History and opened to group visitors who make a contact in advance. More info is available by calling (66 2) 283-5265. Open 09:00-15:30 Monday to Friday.