An endless mass of ramshackle bone-white walls, roads and broken towers, Spiš Castle (Spišský hrad; spisskyhrad.com) is a monumental twelfth-century fortress built over a much older castle. It’s a bleak, dreamlike place, so isolated that the only sounds are birds and crickets. Inside are exhibits giving a clear picture of medieval life (short and dirty), audioguides and a tower to climb. To get here you need to catch a bus from Levoča to Spišské Podhradie, then it’s about an hour’s walk to the castle.