Rocca al Mare is Tallinns "Open air museum", some seventy houses from the 17- and 18th century (the 17th century comprising the years 1700 to 1799 and 18th 1800 to 1899 despite the writing language) by the bay of Kopli. Basically you stroll around, check out the totally non-vegetarian resturant, look at windmills, pay a visit to the gift shop and go back home again. Many of the old houses have been moved here from all over Estonia, still, the place has a genuine feel to it and was well worth the visit.
Peter Erhard