Madrid has a considerable number of Catholic churches, the most prominent of which are the baroque churches.
The oldest church that survives today is San Nicolás de los Servitas, whose oldest item is the bell tower (12th century), in Mudejar style. The next oldest temple is San Pedro el Real, with its high brick tower.
Most churches were built, however, in the Spanish Golden Age. In many cases, poor materials was used for facades, but its interior was decorated with care by the best Spanish and Italians architects, painters and sculptors, at the time. Madrid is next to Seville, the Spanish city with the highest number of quality baroque churches. Some of these churches are St. Michael's Basilica, San Antonio de los Alemanes church, Las Calatravas Church, the church of the Convent of Las Descalzas Reales, the Church of the Royal Convent of La Encarnación the Collegiate Church of San Isidro and the Church of San Ginés.
Madrid also has some notable neo-Gothic and Neo-Mudejar churches, located mostly in the ensanche of the city.
Finally, it's necessary to highlight the monumental San Francisco el Grande Basilica (neoclassical style) and the Almudena Cathedral.