Because it is where St. Peter and his successors the Popes set up the headquarters of the Catholic Church.
Vatican City, home of the Pope and religious center of the Roman Catholic church, is considered to be the "holy land" located in Rome.
This all depends on the type of Christianity. In Roman Catholicism, the Holy City is the Vatican City in Rome. It is where St. Peter's Basilica is. It is considered extremely holy because Peter, the first Pope and a disciple of Jesus, was buried there. In Orthodox Christianity, the Holy City was Constantinople or Byzantium (now Istanbul), before the Ottomans conquered it. Finally, in Russian Orthodox, Moscow is considered to be the Holy City, and is where St. Basil's Cathedral is located.
There are several "holy cities" for Christians. Many are in the Holy Land: Jerusalem, Nazareth, and Bethlehem, to mention a few. For Catholics, Rome is a Holy City. For many Protestant Christians Augsburg is considered a significant site, and many of the central cities of the Reformation are considered to be preeminent.
Jerusalem is considered holy by all three religions.
The "Holy Land" of Judaism is Canaan - known by most as Israel. The Holy City would be considered as Jerusalem.
Jerusalem, the holy city
One of the holiest of cities for Christians is the city of Jerusalem. Bethlehem is another holy city for Christians.
Rome is the capital city of Italy. Therefore it can't have a capital.Rome is the capital of Italy, (Rome is a City and as such does not have a capital).
No, Rome is a city in Italy and not a country itself. Italy is the country that Rome is located in.
A house in ancient Rome was not considered a holy place any more than modern homes are considered holy places. Some of the Romans has a nitch in a wall where their household gods were placed and honors given to them at certain times, but to most Romans a house was just a house where one lived.
It is most probably Jerusalem. On one hand, Rome was the Eternal City and the center of the church for some time. However, Jerusalem was were the church began, indeed, where Jesus began. The Crusaders sought to liberate the "Holy City" from the heathens, and it was Jerusalem, not Rome that was prophesied about in Revelation.
Constantinople