The neighbourhood formed around the Paseo de La Castellana, was an expansion project in the twentieth century, towards the northern part of the city. An important milestone of this project was the construction of a railway that connected different stations of Madrid.

Paseo de La Castellana owns its name to a fountain and its stream, whose course ran along the Castellana-Recoletos-Prado axis.

This 5.8 km long promenade is full of art, such as the two wonderful Botero sculptures, the Museum of Public Art, or the Calatrava Obelisk in the Plaza de Castilla. It also has four relevant business centers such as the Colon Towers, the Kio Towers, the Azca center and finally, the Four Towers.

Back in the 19th century, the Paseo de La Castellana was considered a center of leisure and enjoyment for the high bourgeoisie and aristocracy because of its gardens.

Today, the mixture of past and present makes the architectural styles of the buildings along the Paseo as different as unique, coexisting in absolute harmony, and forming a neighbourhood of sublime beauty.