1: St. Peter's Basilica has the largest interior of any Christian church in the world.

2: The dome of St. Peter's Basilica was designed by Michelangelo.

3: The basilica is built on the site where St. Peter, one of Jesus' apostles, was buried.

4: St. Peter's Basilica is considered one of the holiest Catholic shrines.

5: The basilica's construction began in 1506 and took over a century to complete.

6: St. Peter's Basilica is home to many important works of art, including Michelangelo's Pieta.

7: The basilica's iconic facade was designed by Carlo Maderno.

8: Visitors can climb to the top of the basilica's dome for stunning views of Rome.

9: St. Peter's Basilica is a popular pilgrimage site for Catholics from around the world.