Vatican City is a non-hereditary, elected monarchy that is ruled by the Bishop of Rome — the Pope. The highest state functionaries are all clergymen of the Catholic Church. It is the sovereign territory of the Holy See (Sancta Sedes) and the location of the Apostolic Palace - the Pope's official residence - and of much of the Roman Curia.
For almost 1000 years (324-1309), the Popes lived at the Lateran Palace on the Caelian Hill in the east of Rome. On their return from 68 years in Avignon in 1377 the Lateran building was out of repair, and since then they have lived in the Vatican or, for a while, at the Quirinal, now the residence of the president of Italy. The Lateran Treaty by which the Vatican City State was set up is so called because it was signed in the restored Lateran building, which is now the residence of the Pope's Cardinal Vicar General for the City of Rome. There have been two Vatican Councils, but five Lateran Councils. The Basilica of St. John Lateran, not the St. Peter's Basilica in the Vatican, remains the Pope's cathedral. Vatican is one of the most visited places of worship in the world with more than 25 million devotees coming every year.
you will see lot of horse cart will pick you up
and you can sit in and chill to look around the whole
I didn't get it :(
St. Peter's Basilica and Square (the Vatican is covered ) Vatican City Travel Guide)