The most representative landmark in Havana's old urban area is one of the representative buildings in the whole West Indies and one of the most unique churches in the world. It was built in the middle of the eighteenth century. One of the unique features is the asymmetric Baroque architectural style, and the other is the deep-sea coral stone, which has a strong sense of vicissitudes. The church also had the remains of Columbus, the discoverer of the New World. In front of the church is a enclosed square. The buildings around the square have their own characteristics.