The Cathedral of Saint Mary Major, also known as Basilica di Santa Maria Maggiore, is one of the largest and most important churches in Rome, Italy. It is a major basilica and is dedicated to the Virgin Mary. The cathedral features stunning mosaics, intricate architecture, and a beautiful interior that attracts millions of visitors each year. Constructed in the 5th century, the cathedral showcases a blend of Roman, Byzantine, and Baroque styles. Its most notable features include the grand nave, the ornate ceiling, and the famous Sistine Chapel, which is separate from the more famous chapel in the Vatican. The cathedral is a significant pilgrimage site for Catholics.