What is the Portuguese Cistern and why is it so famous?
The Citerne Portugaise (Cisterna de Mazagão) is a 16th-century underground chamber beneath the walled town, built as an armoury and later turned into a water reservoir. Five rows of Gothic-Manueline vaulted arches rise above a floor under a permanent shallow film of water; the reflections double the apparent depth, an extraordinary play of light and stone. Orson Welles filmed here for Othello in 1952 — reason enough for the detour.



