The Amphitheatre of El Jem rises out of the modern town with startling abruptness — you come around a corner and there it is, an enormous oval of Roman stonework that dwarfs everything around it. It was built in the third century AD, seats 35,000, and is the third largest Roman amphitheatre ever constructed. The comparison most visitors make is with the Colosseum in Rome, and it holds up: the facade of three tiers of arches is almost intact, and the interior has survived in better condition than its more famous cousin.
Walking in from the main entrance, the scale hits you from the arena floor. The tiers rise steeply on all sides. The sand is gone and the stone is exposed, but the arrangement — arena, tiered seating, sky above — is immediate and legible. You can walk to the top of the standing sections for a view of the surrounding olive plains that stretches to the horizon, much as it would have in Roman times.
The underground passages are the most atmospheric part. These are the corridors where gladiators waited, where animals were caged and lifted by pulley to the arena above, and where the machinery of spectacle was organised. They are open, cool, and dark, and walking through them gives a more visceral sense of how the place actually worked than any amount of looking at the facade from outside. UNESCO listed the amphitheatre as a World Heritage Site in 1979. Visit late afternoon when tour groups thin out and the low sun catches the stone.