Is there a hilltop in Spain without a castle? Very few. Trujillo’s Castle dominates the town with its battlements looking out over every quarter. You are permitted to walk the walls, which is well worth it. Don’t forget to stop into the chapel, too. You’ll see them both in the following video.
I most enjoyed those expansive views out over the countryside. No army was going to sneak up on this town. Judging by the size of the outer wards, the place was well-prepared to wait out a siege, too. Bring your catapults!