It is located in the center Madrid, in the "Bailen Street".

The Royal Palace is the official residence of the King of Spain, however, the current Kings do not live in it, they live in the palace of La Zarzuela, it is only use for state ceremonies and solemn acts. 

With an area of 135 000 m² and 3418 rooms, it is the largest royal palace in Western Europe.

The palace was built by King Felipe V, on the site left by the Royal Alcazar of Madrid, almost completely destroyed by fire in 1734. Charles III was the first monarch to inhabited the palace. 
The last monarch who lived in the palace was Alfonso XIII, although Manuel Azana, president of the Second Republic, also lived in the palace, making it the last head of state who did. During that period he was known as "National Palace".

It was build in a baroque style, with a neoclassic interior.