Manila is the seat of prominent Catholic churches and institutions. There are 113 Catholic churches within the city limits; 63 are considered as major shrines, basilicas, or a cathedral. The Manila Cathedral is the seat of the Roman Catholic Archdiocese of Manila and the oldest established church in the country. Aside from the Manila Cathedral, there are also three other basilicas in the city: Quiapo Church, Binondo Church, and the Minor Basilica of San Sebastián. The San Agustín Church in Intramuros is a UNESCO World Heritage Site and is one of the two fully air-conditioned Catholic churches in the city. Manila also has other parishes located throughout the city, with some of them dating back to the Spanish Colonial Period when the city served as the base for numerous Catholic missions within the Philippines and to Asia beyond.