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In the past half century Rome has expanded well beyond the walls started in the 3d cent. by Emperor Aurelian, and it now extends north to the Aniene. Long sections of the ancient walls have been preserved, however, and archaeology remains an essential element of modern city-planning in Rome. Ancient marble columns and ruins rising beside modern apartments and offices, noisy boulevards, and luxurious villas and gardens characterize the modern city of Rome. As in ancient times, the larger section of Rome lies on the left bank of the Tiber, which intersects the city in three wide curves and is spanned by over 20 bridges.
Economy
As in ancient times Rome is a center of transportation. It is the focus of international traffic by road, rail, sea (at the port of Civitavecchia), and air (at Leonardo da Vinci international airport at Fiumicino) and is as well a cultural, religious, political, and commercial center of international importance. Public transportation in Rome is provided by an elaborate bus system. A subway, the Metropolitana, was opened in 1955. Rome's large number of automobiles has caused serious traffic congestion, and in the 1970s and 80s various attempts w with the problem, including the banning of traffic in certain parts of the city. The economy of Rome depends to a very large extent on the tourist trade. The city is also a center of banking, insurance, printing, publishing, and fashion. Italy's movie industry (founded in 1936) is located at nearby Cinecitta.
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