Located within Cibeles Palace, home to Madrid City Hall, this large courtyard, which is covered with an immense glass dome, hosts all kinds of public and private events.

The gallery is a multifunctional space covering an area of 2,800 square metres, enclosed by means of a sophisticated glass structure comprising over 2,000 glass triangles, all different from one another, at a height of 30 metres. In the 17th Century, it was part of the area surrounding Buen Retiro Palace, and later, in the 19th Century, it housed a recreational garden. In the 20th Century, it became part of the Comunicaciones Palace, as an unloading passage and yard, and following its restoration and renovation, it has been turned into an essential element of Madrid City Hall.

This space is open to the public every day of the week, and has underfloor heating and air conditioning.