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Ancient Column Detail of Temple of Castor and Pollux. Rome,Italy.jpg
The Temple of Castor and Pollux (Italian: Tempio dei Dioscuri) is an ancient edifice in the Roman Forum, Rome, central Italy. It was originally built in gratitude for victory at the Battle of Lake Regillus (495 BC). Castor and Pollux (Greek Polydeuces) were the Dioscuri, the "twins" of Gemini, the twin sons of Zeus (Jupiter) and Leda. Their cult came to Rome from Greece via Magna Graecia and the Greek culture of Southern Italy. Rome (/ˈroʊm/; Italian: Roma pronounced [ˈroːma] ( listen); Latin: Rōma) is a city and special comune (named "Roma Capitale") in Italy. Rome is the capital of Italy and also of the homonymous province and of the region of Lazio. With 2.8 million residents in 1,285.3 km2 (496.3 sq mi), it is also the country's largest and most populated comune and fifth-most populous city in the European Union by population within city limits. Between 3.2 and 3.8 million people live in the urban area. and 4,194,068 in Rome metropolitan area. The city is located in the central-western portion of the Italian Peninsula, on the Tiber within the Lazio region of Italy. Rome is referred to as "The Eternal City", a notion expressed by ancient Roman poets and writers.