Geological Sites, Varhegy (Castle Hill)
Fodor's Review:
Used as a wine cellar during the 16th and 17th centuries and then as an air-raid shelter during World War II, this 16-meter (52-foot) deep, 1,200-meter (3,900-foot) long labyrinth -- entered at Úri utca 9 below an early-18th-century house -- can be explored with a tour or, if you dare, on your own. English-language brochures are available.
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