The Basilique Saint-Pierre, or St. Peter's Basilica, is a renowned church located in Vatican City. It is one of the largest and most important churches in the world, known for its stunning architecture and artistic masterpieces. The basilica was originally built over the tomb of Saint Peter, one of Jesus' apostles and the first Pope. Construction of the basilica began in 1506 and was completed in 1626, featuring contributions from famous artists like Michelangelo and Bernini. The dome, designed by Michelangelo, is a prominent feature of the Roman skyline. The basilica serves as a major pilgrimage site and a symbol of the Roman Catholic Church.