The Romans built the Colosseum featured in Assassin's Creed Brotherhood.
The Colosseum, also called the Flavian Amphitheatre, was constructed in Rome under the Flavian emperors. Construction began under Vespasian around AD 70–72 and the amphitheatre was dedicated by Titus in AD 80. It could host spectacles for very large crowds, including gladiatorial contests and animal hunts.
Brotherhood places Ezio Auditore in Rome during the early sixteenth century, more than a millennium after the Colosseum opened. The monument appears as part of the game's explorable city and reflects Rome's surviving ancient architecture.
The structure is sometimes loosely described as Greek because Greek architecture influenced Roman building traditions. However, the Colosseum itself is a Roman amphitheatre, and its builders were the Romans. The name “Flavian” comes from the dynasty that commissioned it.