Jutting into the town from the northwest is the beguilingly named Aqueduto da 脕gua de Prata, designed by Francisco de Arruda (better known for Lisbon鈥檚 Tower of Bel茅m) to bring clean water to 脡惫辞谤补. It was completed in the 1530s. At the end of the aqueduct, on Rua do Cano, the neighbourhood feels like a self-contained village, with houses, shops and cafes built right into its perfect arches, as if nestling against the base of a hill.
It鈥檚 possible to walk for around 8.5km alongside the aqueduct, starting outside town, on the road to Arraiolos. There are three access points; the tourist office provides maps. Unfortunately, it heads in one direction only, so transport back can be a problem if you don鈥檛 have your own wheels. Take plenty of liquids 鈥 ironically, there鈥檚 no potable water along the way.