World's Most Unusual Hotels
Pappilabild / Courtesy of Sala Silvermine, Sweden
Sala Silvermine Underground Suite, Västmanland, Sweden
At 500 feet underground, this hotel, hewn from the rock by 18th-century silver miners, is the deepest in the world. Comprising only one room, with silver furniture (naturally), the suite in the abandoned Sala Silver Mine is not for the claustrophobic. On check-in, a guide provides a brief tour of the mine then leaves guests to endure the constant 36 degrees, with possible side effects of loneliness and paranoia, until morning.