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Cirencester's Colossal Roman Amphitheatre: From Spectacle to Fortress
7 Nov, 2025
Summary
- Cirencester amphitheatre was one of the largest in Roman Britain
- Amphitheatre transformed into a fortress after Roman army departed
- Remnants of timber buildings from the 5th century found at the site

In 2025, the earthwork remains of a gigantic Roman amphitheatre lie nestled next to the town of Cirencester in the Cotswolds. Constructed in the early 2nd century AD, this amphitheatre was one of the largest in Britain, capable of hosting up to 8,000 spectators.
Cirencester, known as the Roman city of Corinium at the time, was the second-largest town in Britain after London. The amphitheatre began as a simple quarry, with much of the stone used to build the town believed to have come from it. By the time the town was largely constructed, its layout already resembled an amphitheatre, complete with tiered seating.




