Rome is the European capital built on seven hills and containing the Colosseum.
Ancient Rome traditionally developed across seven hills east of the Tiber River. The number is a historical convention associated with the city’s early core, and different sources may identify the hills slightly differently depending on the period being discussed.
The Colosseum, also called the Flavian Amphitheatre, was begun under Emperor Vespasian and inaugurated by Titus in 80 CE. It hosted public spectacles, including gladiatorial contests, animal hunts, and staged events. It is one of the most famous surviving monuments of the Roman world.
Rome is the capital of Italy and surrounds Vatican City, an independent state enclosed within the urban area. The Colosseum is not a palace or temple; it was an amphitheater designed for large public audiences.