3Alberobello, Italy

Alberobello is an incredible Unesco-listed town in Puglia, Italy, famous for its adorable trulli – unique round houses made of limestone with conical stone roofs. These little houses line every cobbled street in the town, particularly in the Rione Monti quarter, home to more than 1,000 trulli.
You can peek inside the buildings, many of which house some of the 10,000 locals who live in this unique spot or enjoy a drink in a tiny, traditional cafe.