The Septimius Severus Arch in the northwest of the Roman Forum is a triumphal arch of white marble inaugurated in 203 AD to commemorate the victories of Emperor Septimius Severus and his two sons, Caracalla and Geta, in two campaigns against the Parthians in 194–195 and 197–199.
Rome is the capital city of Italy. It is also the capital of the Lazio region, the centre of the Metropolitan City of Rome, and a special comune named Comune di Roma Capitale. With 2,860,009 residents in 1,285 km2 (496.1 sq mi), Rome is the country's most populated comune and the third most populous city in the European Union by population within city limits.