Calle Guaramillos
Named after the Alto de las Guarramillas, a peak of the Sierra de Guadarrama crowned by antennas that Madrileños nicknamed the Bola del Mundo.
This pedestrian street in Ciudad Jardín belongs to a group of streets christened with peaks of the Sierra de Guadarrama. Alongside Peñalara, Siete Picos and Cueva Valiente, the neighbourhood placed Guaramillos, an echo of the Alto de las Guarramillas, at the western end of the Cuerda Larga, above the Navacerrada pass.
The peak rises to some 2,265 metres, on the boundary between Madrid and Segovia. Its outline changed in 1959, when a television relay was raised there. The antennas crowning the summit recalled the globe that opened the first broadcasts, and ever since the mountain has been called, half in jest, the Bola del Mundo.
The origin of Guarramillas is unsettled. Some link it to the Guadarramiellas cited in the Libro de la Montería of Alfonso XI; others take it for a distortion of local speech. The street keeps a variant of the place name, with a single r.