Located on Ratchawithi Road Behind the National Assembly, it is the world’s largest building made entirely of golden teak. Removed from Ko Sichang in Chonburi province, it was rebuilt here in 1900 by the command of King Rama V. The mansion has many exhibition rooms, some of shich maintain the atmosphere of the past. A guided tour inside the building is provided to visitors. Other buildings in the same compound are also used as museums, ans display various items and art objects; for example, H.M. King Bhumibol’s photography, H.M. Queen Sirikit’s collection of handicraft masterpieces created by rural people, paraphernalia of rank and portraits, old clocks, ancient cloth, and royal carriages.

The compound is open daily from 9.00 a.n.-4.00 p.m. Admission fee is 50 baht. There are also traditional Thai dancing shows at 10.30 a.m. and 2.00 p.m. Proper attire is required.