Main-house visits require a guide. There are stairs and no lift; use National Stadium BTS Exit 1. Regular hours: daily 10:00–17:00. Admission: THB 250 for adults; age-based concessions apply. 6 Kasemsan 2, Rama I Road, Bangkok
Supanut Arunoprayote · CC BY 4.0 · via Wikimedia Commons; exterior of Thawon Watthu Building, 9 December 2023; no file edits · Source · CC BY 4.0
Phra Nakhon
Exhibitions of gilded lacquer cabinets, commemorative coins and building history in the red building beside Sanam Luang. The library shares this building but closes at a different time. Regular hours: Wed–Sun 09:00–16:00; closed Monday and Tuesday. Admission: free. Thawon Watthu Building, Na Phra That Road, Phra Nakhon, Bangkok
Some rooms require timed admission. Last entry is 15:00 for one route or 13:00 for both routes. Regular hours: Tue–Sun 09:00–17:00; closed Monday; open public holidays. Admission: THB 70 Thai / THB 100 foreign visitors. 100 Ratchadamnoen Klang Road, Phra Nakhon, Bangkok On 13 October 2026 admission is free, with half-hourly sessions 09:30–15:00; the last session for both routes is 13:00.