Located on the Chinchón road, alongside the Arganda Bridge, this former  Radio Nacional de España building, opened in 1954, is today popular for being the new headquarters of The Ministry of Time in its fourth season, the successful TVE series, as well as having appeared in other productions, such as a post office in Velvet Collection (Movistar +), and as the Medical Research Centre in La Valla (Antena 3).

The building, now abandoned, forms part of a set of buildings located on both sides of the road  in which RNE had the headquarters of the medium and short-wave radio stations, houses and warehouses, whereby the most representative is this monumental property that was home to the short-wave radio station.

The building was designed by the architect, Diego Méndez, following the guidelines of classic architecture from the Franco era. Inside, the entrance hall stands out, a square room decorated with polychromatic marbles, presided by an impressive staircase with two flights of stairs, which is also in marble.  On the first floor, there is all of the machinery for generating the necessary voltage and current for the short-wave transmitters, and the third floor has a library with important telecommunications books and articles.