Rome is home to local rugby union teams such as Rugby Roma (founded in 1930 and winner of five Italian championships, the latter in 1999–2000), Unione Rugby Capitolina and S.S. Lazio 1927 (rugby union branch of the multisport club S.S. Lazio). Every May, Rome hosts the ATP Masters Series tennis tournament on the clay courts of the Foro Italico. Cycling was popular in the post-World War II period, although its popularity has faded. Rome has hosted the final portion of the Giro d'Italia three times, in 1911, 1950, and 2009. Rome is also home to other sports teams, including volleyball (M. Roma Volley), handball or waterpolo. Transport Rome is at the centre of the radial network of roads that roughly follow the lines of the ancient Roman roads which began at the Capitoline Hill and connected Rome with its empire. Today Rome is circled, at a distance of about from the Capitol, by the ring-road (the Grande Raccordo Anulare or GRA). Due to its location in the centre of the Italian peninsula, Rome is the principal railway node for central Italy. Rome's main railway station, Termini, is one of the largest railway stations in Europe and the most heavily used in Italy, with around 400 thousand travellers passing through every day. The second-largest station in the city, Roma Tiburtina, has been redeveloped as a high-speed rail terminus. As well as frequent high-speed day trains to all major Italian cities, Rome is linked nightly by 'boat train' sleeper services to Sicily, and internationally by overnight sleeper services to Munich and Vienna by ÖBB Austrian railways. Rome is served by three airports. The intercontinental Leonardo da Vinci International Airport, Italy's chief airport is located within the nearby Fiumicino, south-west of Rome. The older Rome Ciampino Airport is a joint civilian and military airport. It is commonly referred to as "Ciampino Airport", as it is located beside Ciampino, south-east of Rome. A third airport, the Roma-Urbe Airport, is a small, low-traffic airport located about north of the city centre, which handles most helicopter and private flights. The main airport system of the city (composed of Fiumicino and Ciampino), with 32.8 million passengers transported in 2022, is the second airport system in Italy after that of Milan with 42.2 million. Although the city has its own quarter on the Mediterranean Sea (Lido di Ostia), this has only a marina and a small channel-harbour for