This is a little hard to find but well worth the effort. A good history of Rum in the Caribbean in an old Spanish villa with adjacent warehouse. They offered tastings of Rum natural , with coffee and other flavours

Tuesday16th April we were on a day tour of Santo Domingo, we had completed our trip around the streets in the street train, Chu Chu Colonial Santo Domingo, which conveniently dropped outside this rum museum and factory.. Our Guide described the ancient process of making rum, on display there were a number of old vessels, vats and tools used in the process. One of the implements was the a Trapiche which was used to extract the liquids from the sugar cane. We sampled pineapple and natural rum in the small courtyard to the rear of the building. From there we were led into the shop where guests could purchase rum and other gifts. There was no hard sell but it was obvious that this was the main reason for visiting here.