3^rd International Conference on
Toxicology and Clinical Toxicology

Rome is regarded as one of the world's most beautiful ancient cities, and contains vast amounts of priceless works of art, palaces, museums, parks, churches, gardens, basilicas, temples, villas, piazzas, theatres, and other venues in general. As one of the world's most important and visited cities, there are numerous popular tourist attractions. Rome is the capital city and a special comune of Italy (named Comune di Roma Capitale). Rome also serves as the capital of the Lazio region. With 2,872,800 residents in 1,285 km2 (496.1 sq mi), it is also the country's most populated comune. It is the fourth most populous city in the European Union by population within city limits. It is the centre of the Metropolitan City of Rome, which has a population of 4,355,725 residents, thus making it the most populous metropolitan city in Italy. Rome is located in the central-western portion of the Italian Peninsula, within Lazio (Latium), along the shores of the Tiber. The Vatican City (the smallest country in the world)[3] is an independent country inside the city boundaries of Rome, the only existing example of a country within a city: for this reason Rome has been often defined as capital of two states.