This little museum is hidden away up an alley off Calle Linares aka ‘Gringo Street’ due to all the travel agencies and clothing or crafts shops. 
Whilst tiny in size it is bursting with information about the little green leaf that has been held sacred in the Andes for centuries. The displays themselve look a little worn and the whole setup can seem a little amateur, but if your patient enough to follow the self guided tour whilst reading the provided infomation in your own language (available in many languages) you will no doubt learn plenty of facts you didnt know about the coca plant.