Why is the Vatican a sacred place?

Answer 1

The area of the Vatican and Rome has seen the blood of hundreds of martyrs spilled over the centuries and that makes the Vatican hallowed ground. It also contains the tombs of Saint Peter and a number of other saints.

Answer 2

Before a Catholic Church can be used, it is solemnly dedicated and consecrated by a Bishop in a long and ancient ceremony which is very involved. It includes pouring Sacred Chrism over the altar, after cementing the relics of saints in the altar stone. Incense is burned at various locations throughout the new Church and prayers are offered to God invoking the saints and angels to come and protect this sanctuary of God. Finally, the Holy Sacrifice of the Mass is offered on the new altar, and the Body of Christ is reserved in the tabernacle. After all this the new Church may never be used for any profane purpose unless it has been solemnly deconsecrated - returned to profane use.

Answer 3

It is the headquarters of the Catholic Church and where many popes and saints are buried, like St. Peter and St. Paul.