Chris Pearrow
Unique bullring
The bullring of Almadén is famous for being the only hexagonal bullring in the world. During the off-season, it's looked over by an adjacent hotel-restaurant who will let you enter and explore the bull ring for free. One nice thing is that you'll typically be the only one visiting when bullfights aren't going on, so you have the chance to enjoy the stately architecture, wooden roofs, and white-washed arches without any disturbances. This should definitely be on your to-do list in Almadén!