We toured St. Peter’s Basilica, a large ornate structure. It is not a cathedral since it is not the seat of a bishop. It is termed a papal basilica.
It has the largest interior of any Christian church in the world, holding 60,000 people.
A lot of people believe that the Apostle Peter's tomb is located below the altar built in the basilica.
The basilica is cruciform in shape, meaning it is built in the shape of a cross.