San Jeronimo el Real, near the Prado Museum, is a Catholic Church from the 16th century. The church, a part of a former monastery, went through many renovations in the past centuries, that succeeded in almost completely hiding the original look of the building.
Throughout history the church was used as a shelter for the Kings of Spain, and was the place where many Parliament members were sworn in. Here, the marriage of King Alfonso XIII took place, in a ceremony for which stairs were built towards the road, so the entrance from the road will be more impressive.
Inside the church, you can see today a variety of paintings and impressive statues, as well as typical glass windows.