Castle of Alandroal is the town's natural starting point, a medieval fortification absorbed into the everyday street plan. Its walls and gates are not theatrical, but they give the small centre a clear shape and remind you how close this part of the Alentejo sits to the old Spanish frontier.
The visit is short, which suits Alandroal. Walk the walls and nearby lanes, then use the castle as a marker before heading out to Terena or Juromenha.