The Sacré-Cœur Basilica, located in Montmartre, Paris, is a prominent Roman Catholic church known for its stunning white domes and panoramic views of the city. Completed in 1914, it was designed by architect Paul Abadie and features a blend of Romanesque and Byzantine architectural styles. The basilica is dedicated to the Sacred Heart of Jesus and serves as a place of worship and pilgrimage. 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 site attracts millions of tourists each year, making it a significant cultural landmark in Paris.