Dubrovnik opened this museum to the public as a testament to its glorious past as it was an industrialized and productive country in the time of commerce. In the heart of this walled city, an astonishing discovery was made a uniquely preserved ancient industrial estate, which is a medieval foundry in the time of Fort Menchet from the late 15th century. This museum includes internal (underground) archaeological features, and the view from it is very beautiful. It's a great place and worth a visit, it's cool in the summer and there are so many interesting things to do.