This monument, located in the district of Barajas, is one of a handful of examples of military architecture remaining from the 15th century, and one of the few castles that have survived the passage of time. Now, following a painstaking process of restoration and conservation, it has been given a new lease of life as a museum.

The site on which the Castle of La Alameda, also known as the Castle of Barajas, stands reflects all the periods in the history of this area, between the city of Madrid and the Jarama valley. Below the castle and its surroundings there are remains of ancient settlements, from the Bronze Age to Roman times.

Today, the castle forms part of the "museosdemadrid" programme, with workshops for schoolchildren and summer activities taking place here.