Distinguishing features of Lastovo architecture are stone houses with imaginative chimneys – called ‘fumar’ (pl. fumari, lat. Fum – smoke, vapor). Why the villagers have been investing – through the centuries - so much effort to build diverse chimneys is still a mystery, but the fact is that it is almost impossible to see two similar fumars (chimneys); especially if you are looking at old houses. Some of them even look like minarets – tall spires with onion-shaped crowns that are features of Islamic mosques.