The Hall of Opium (GPS: 20.36471, 100.07347) is an informative museum dedicated to its namesake. Of all place, it is located in the town of Sop Ruak, right on the Golden Triangle in Thailand.
All that you need to know about opium - and some that you really don't - is carefully documented in this museum. You will, for example, learn the history of opium, its scientific name, Papaver somniferum, how heroin is extracted, and everything else about opium that makes the Golden Triangle notorious. Showcased are pipes that were used in smoking opium.
In addition to opium, there is also some information in the Hall of Opium about the Padaung people, also called the long-neck people.
I visited the Hall of Opium when I explored the Golden Triangle area with some friends who are now AsiaExplorers members. Although I am not particularly keen to learn about opium, I must acknowledge that the Hall of Opium is a more interesting museum.
Exhibits in the Hall of Opium (21 December, 2002)
Smoking opium (21 December, 2002)
Various pipes for smoking opium (21 December, 2002)
Various pipes for smoking opium (21 December, 2002)
360° View of the Hall of Opium on Google Street View