The Castle of Pinhel is the town's main sight, with two medieval towers standing above the narrow streets of the historic centre. Visit Portugal describes it as one of the old strongholds in the defensive system of this frontier region, and the town has added an interpretive centre inside the castle complex.
The centre explains the castle, the Coa valley context, and Pinhel's place in the long border story between Portugal and Leon. The views over the town and surrounding plateau are the other reason to climb up.