The Royal Basilica of Saint Francis the Great

The Royal Basilica of Saint Francis the Great (Spanish: Real Basílica de San Francisco el Grande) is a Roman Catholic church in central Madrid, Spain, located in the neighborhood of Palacio.

The main façade faces the Plaza of San Francisco, at the intersection of Bailén, the Gran Vía de San Francisco, and the Carrera de San Francisco. It forms part of the convent of Jesús y María of the Franciscan order. The convent was founded in the 13th century at the site of a chapel.
The temple once functioned as the National pantheon and enshrined the remains of famous artists and politicians. Today is an important tourism point.
The dome is 33 metres (108 ft) in diameter and 58 metres (190 ft) in height; its shape is very similar to the Pantheon's dome, having a more circular shape than the typical domes built in the 18th century. It is reportedly the fourth biggest dome in Europe after the Pantheon, St. Peter's Basilica and the Florence cathedral.
Quote: Wikipedia