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Mycenaean Architecture

Treasury of Atreus, Mycenae, Greece, c. 1300-1250 BCE.
The Treasure of Atreus and others tombs like it are demonstrations of corbeled vaulting that covers an expansive open space.
Source
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"Treasury of Atreus Mycenae."
http://commons.wikimedia.org/wiki/File:Treasury_of_Atreus_Mycenae.jpg
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