Tourism in Vatican City
The Vatican was built during the year 326 A.D. As the population and housing grew, the first palace was built during the 5th century under the reign of Pope Symmachus (498–514). Under the Holy Roman Empire, the Papal States grew to include a large portion of central Italy. But since the unification of Italy in the mid-19th century, Vatican City is the only papal state that has survived. As of 1929, because of the Lateran Treaty, the Vatican is recognized as its own independent state, the smallest in the world in population and land size, with a population of just over 800 people in July 2011. The Pope is not only the head of the Catholic religion but also head of state for Vatican City. Since the Vatican is located in Italy, the main language of the Vatican state (or Vatican City) is Italian.
Rail transport in Vatican City
The Vatican City State Railway branches off from the Rome to Viterbo railway line at the Roma San Pietro railway station and crosses Gelsomino valley via a 143.12 metre long masonry viaduct of eight 15.30 metre arches (bearing the Fasces and the Savoy Coat of Arms), which crosses Viale Vaticano (which it interrupts) and Via Aurelia. The Via delle Cave and the Via del Gelsomino are also interrupted by the viaduct and thus merge with the Via Aurelia.
The single track section of the route up until the border was subsequently fitted with overhead electric line. The first 100 metres of overhead line is always supplied with 3000V DC, with the remainer of the distance only energerised as needed.