In total, Saint Peter’s Basilica covers more than 5 acres (2 hectares). The interior floor of the basilica covers 3.7 acres (1.5 hectares).
After construction of the basilica was complete, Bernini began plans to build a piazza in front. He designed two curving colonnades-
In Italian the piazza is called the Piazza San Pietro. In English it is known as Saint Peter’s Square. In modern Rome, a street called the Via della Conciliazione leads to the square. More than four million tourists each year cross Saint Peter’s Square to see the basilica. The church is open every day. Visitors can even climb the 320 steps of the dome to reach the very peak of this architectural wonder.