Throughout Lisbon you can find remnants of an extensive aqueduct system, called Aqueduto das Águas Livres (or “Aqueduct of the Free Waters”). It was built in the 18th century and at that time supplied Lisbon with much needed drinking water.  Nowadays it is no longer in use and parts have been destroyed but through the Museu da Água (or “Water Museum”) you can still access two reservoirs, the Mãe d’Água das Amoreiras Reservoir, which is the largest reservoir, and the Patriarcal Reservoir, the Barbadinhos Steam Pumping Room and part of the Águas Livres Aqueduct itself.

Reservatório da Mãe d’Água das Amoreiras & Reservatório da Patriarcal