The Royal Regalia Museum in Bandar Seri Begawan showcases the opulence and history of Brunei's royalty, featuring displays of ceremonial items, royal carriages, and gifts presented to the Sultan. The museum is generally accessible, offering a relatively inexpensive glimpse into Brunei's heritage, suitable for both solo travelers and guided tours which may provide deeper cultural context. A typical visit lasts around 1-2 hours. Note that photography is often restricted in certain areas, and it's advisable to dress modestly out of respect for local customs.