Lisbon's impressive 18th Century aqueduct is an impressive piece of engineering, which supplied water to the city right up to 1967. It's possible to visit the aqueduct, but it's even more fun to walk across it.
The Calçada Estação train station is 10 minutes stroll from the start of the aqueduct walk:
• Linha de Sintra/Azambuja: Timetable
Trains of Portugal Website
|The 702 bus gets you close, alight at the Cç. dos Mestres, Rua 5: Timetable