Unusual Restaurant located inside underground ancient Berber 'troglodyte' dwelling filmed in the 'Star Wars'. Hotel Sidi Driss. Matmata, Tunisia. 
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This structure was created by digging a large pit in the ground. Around the perimeter of this pit artificial caves are then dug to be used as rooms, with some homes comprising multiple pits, connected by trench-like passageways. Hotel Sidi Driss has become one of the most famous filming locations of Star Wars.

photo: Andy Carvin (wikimedia)