The Sancti Petri Castle is a free museum located in the heart of Sancti Petri. It offers visitors a glimpse into the history and culture of the region. The castle itself is a stunning example of medieval architecture, with its towering walls and impressive fortifications. Inside, you'll find a collection of artifacts and exhibits that tell the story of Sancti Petri's past, from its origins as a fishing village to its role as a strategic military stronghold. The museum also hosts regular events and workshops, allowing visitors to engage with the history and traditions of the area.