The Sacré-Cœur Basilica is a prominent Roman Catholic church located at the summit of Montmartre, the highest point in Paris. Completed in 1914, it features a striking white dome and a blend of Romanesque and Byzantine architectural styles. The basilica is dedicated to the Sacred Heart of Jesus and serves as a popular pilgrimage site. Visitors can access the basilica via a staircase or a funicular railway. Inside, the church boasts beautiful mosaics, including the grand Christ in Glory mosaic, which is one of the largest in the world. The basilica also offers panoramic views of Paris from its dome.