St. Mark's Cathedral is one of the most important historical and religious sights in Arica, northern Chile.The cathedral was built in the late 19th century in the Italian neoclassical style, with a white marble facade and a dome decorated with frescoes. It was designed by Italian architect Luigi Brunelli, who used materials imported from Italy to build the cathedral.Inside, the cathedral features a Latin cross architecture with three naves and a series of side chapels. The nave is covered by a barrel vault decorated with frescoes depicting biblical scenes, while the high altar is decorated with polychrome marble.St. Mark's Cathedral was declared a national monument of Chile in 1984 and is one of the main places of worship in the city of Arica. Every year during Holy Week, the cathedral becomes the focal point for religious celebrations, with thousands of faithful participating in processions.In summary, St. Mark's Cathedral is an important example of Italian neoclassical architecture in Chile and a place of great religious significance for the community of Arica. If you visit the city, I recommend a visit to the cathedral to admire its beauty and history.