Hash Marihuana Hemp Museum
Oudezijds Achterburgwal 148 (623 59 61).
Of course Amsterdam has a museum dedicated to the use of cannabis, be it for pleasure, as a medicine or for making textiles and paper from the hemp plant. It illustrates the role of cannabis in history, there's a garden with hemp plants, the process of making hash and marihuana is explained, and attention is paid to the various rolling and smoking methods. There's a 'head shop' next door which sells various smoking and growing paraphernalia.
Open daily 11am-10pm. Admission €6.