Hall of Opium

The Hall of Opium is a museum in Wiang, Chiang Saen District, Chiang Rai Province, located within the Golden Triangle Park near the Mekong River. Operated by the Mae Fah Luang Foundation, it educates visitors about the history of opium in the Golden Triangle region. Through multimedia exhibits and artifacts, it traces opium cultivation, trade, and its social impact, serving as a research and education centre.

Visitors can expect a modern two-storey museum with dark, atmospheric exhibition halls, multimedia displays, dioramas, and artifacts tracing the 5,000-year history of opium from ancient use to the Golden Triangle era. The visit follows a chronological route through tunnels and themed galleries with video presentations, maps, and historical objects. The museum is set in landscaped grounds within Golden Triangle Park overlooking the Mekong River area, with a gift shop and café on site.

The Hall of Opium was established by the Mae Fah Luang Foundation under the patronage of Princess Srinagarindra to document and educate about the history of opium in the Golden Triangle, where Myanmar, Laos and Thailand meet. Opened to the public in the early 2000s, it presents the long history of opium use, its spread along trade routes, and the region's association with opium cultivation and trade in the 19th and 20th centuries.

The museum serves as an educational and cultural centre focused on drug prevention and awareness, explaining the social and cultural impact of opium on communities in the Golden Triangle. It is part of the broader Mae Fah Luang Foundation initiatives for sustainable development and education in northern Thailand.