Cycling in Madrid shared-use paths. The most important shared-use path is Madrid Río, a park located in the banks of the Manzanares River and opened in 2011. Car-shared lanes and streets (in Spanish: ciclocalle o ciclovía) are very frecuent in Madrid. They are marked with the drawing of a bicycle on the pavement, and they are speed limited to 30 km/h. In Madrid, there are many bike sidewalk paths (in Spanish: acera-bici). Some are located in O'Donnell Street or Serrano Street. Greenways (in Spanish: pista-bici) are independent cycle routes, for example the Royal Route GR-124. BiciMAD is a public service of bicycle-sharing. It
Architecture of Madrid and the Thyssen-Bornemisza Museum, which completes the shortcomings of the other two museums. Cibeles Palace and Fountain have become the monument symbol of the city. The architecture of Madrid reflects a number of styles from various historical periods. Very little medieval architecture is preserved in Madrid, and most of it is located inside the Almendra central. Historical documents show that the city was walled and had a castle (the Alcázar) in the same place where the Royal Palace now stands. Among the few preserved medieval buildings are the mudejar towers of San Nicolás and San Pedro el Viejo churches, the