Downtown Lisbon is dominated by Castelo de Sao Jorge (Castle of St George). Like most of the castles in neighbouring Andalucia, this one was largly built by the moors during their 400+ years rule in Portugal. But it was reconquered in 1147 so the moorish influence is a lot less obvious.

It takes a 20 to 30 minute walk up some steepish, cobbled streets to get to the old castle but once there you’re rewarded with some stunning views of Lisbon.