The Catedral de San Pedro, also known as 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, serving as a major pilgrimage site for Catholics. The basilica is famous for its stunning architecture, designed by notable figures such as Michelangelo and Bernini. Construction of the cathedral began in 1506 and was completed in 1626. The interior features remarkable artworks, including Michelangelo's Pietà and the grand Baldachin by Bernini. The dome of the basilica is an iconic symbol of Rome and can be seen from various points in the city.