Colosseum
Around 50,000 Romans packed this stone oval to watch spectacles staged over a two-level warren of cages beneath the arena floor.
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The largest ancient amphitheatre ever built, finished in 80 AD by the Flavian emperors. Earthquakes and centuries of stone-robbing stripped away half the outer ring, so its whole afterlife reads in the ruin in front of you.
What to look for
- Pockmarks in the travertine where medieval looters pried out the iron clamps that once bound the blocks together
- Three stacked column orders on the surviving outer wall — Doric at the base, then Ionic, then Corinthian
- Roman numerals carved above the entrance arches; spectators matched them to numbered pottery shards to find their seats
The top two levels open only on guided visits, added in 2017.
Colosseum is one of 40 sights worth the detour in Rome, all bundled offline in Voyage GO — download the Rome pack and it sits on your map with no signal, filling your travel passport the moment you walk past.
More to see in Rome
- Vatican CityThe world's smallest sovereign state fits in 44 hectares — you cross its border by stepping over a white line.
- St. Peter's BasilicaThe world's largest church, built directly over the grave believed to hold St. Peter's bones.
- Sistine ChapelMichelangelo painted the ceiling standing up, not on his back — and cardinals still elect the pope in this room.
- PantheonA 1,900-year-old concrete dome with a hole punched in the top — when it rains in Rome, it rains inside too.
- Stadio OlimpicoOne 70,634-seat bowl, two cross-town tenants: AS Roma and SS Lazio both play here.
- Roman ForumThe valley where Rome held elections, tried criminals, and paraded victorious generals down the Via Sacra.