1. Acueduct

This building is listed in the National Assets of Cultural Interest. 

It dates back to the beginning of the 2nd century AD (during the rule of the Emperor Trajan). 

- Total length, from its starting point in the Sierra de Guadarrama: 16,186 m. 

- Archway: 959 m.  

- Maximum height: 28.10 m.  

- Total number of arches: 167.  

It was built to supply water to Segovia and is a masterpiece of Roman hydraulic engineering, made using large granite ashlars stacked on top of each other without mortar. The water channel flowed along at the top, and supplied cisterns and public fountains. 

Once the water course leaves the aqueduct, it flows underground towards the fortress Alcázar and this has been documented since medieval times. The water was purified by filtering using desander pits, which can be seen today in the Casita de Piedra or Chamberí Desander (1B), a few metres before  the start of the arcade, and in San Gabriel’s Desander (1A), a few metres after the beginning of the structure. Both pits show signs of restoration after the Roman period. Declared a National Monument in 1884 and a World Heritage Site in 1985, it is a symbol of the city, appearing on its flag and coat of arms and was the mintmark of the coins struck in Segovia (1 BC).  

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- Open permanently. 

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