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amphitheatre

Colosseum (Flavian Amphitheatre), Rome

The largest amphitheatre of the Roman world, begun under Vespasian in AD 72 and opened by Titus in AD 80 with a hundred days of games.

41.9, 12.5 · exact · AD 72 – present

Lines mark links and orders the records assert; no path between any two places is recorded, and none is drawn.

located in Rome — Built on the drained lake of Nero's confiscated Golden House and given back to the public, the amphitheatre is imperial legitimacy expressed as architecture - the emperor returning private land to the people.
uses The voussoir arch — The amphitheatre is built from repeated arcades and radial and annular vaults, which is the arch used as a building system rather than as a single span.
uses Roman concrete (opus caementicium) — The vaults carrying the seating and circulation are concrete, with cut stone reserved for the outer skin and the load-bearing piers.

amphitheatre

The largest amphitheatre of the Roman world, begun under Vespasian in AD 72 and opened by Titus in AD 80 with a hundred days of games.

41.9, 12.5 · exact · AD 72 – present

Lines mark links and orders the records assert; no path between any two places is recorded, and none is drawn.

located in Rome — Built on the drained lake of Nero's confiscated Golden House and given back to the public, the amphitheatre is imperial legitimacy expressed as architecture - the emperor returning private land to the people.
uses The voussoir arch — The amphitheatre is built from repeated arcades and radial and annular vaults, which is the arch used as a building system rather than as a single span.
uses Roman concrete (opus caementicium) — The vaults carrying the seating and circulation are concrete, with cut stone reserved for the outer skin and the load-bearing piers.