One of the Mediterranean’s least-known vacation destinations, Pantelleria is a wild, rugged speck closer to Tunisia than to Sicily, which claims it as a satellite. The sparsely populated volcanic outcrop is considered the black pearl of that sea and is a favorite hideaway of the likes of Giorgio Armani, who owns a villa there. For those just passing through, the new Sikelia is an ideal home base for exploring the otherworldly isle; each of its stylish suites are housed in ancient dammusi dwellings (a traditional Pantellerian building style), and the spa takes full advantage of the island’s healing mineral hot springs and nutrient-rich mud.