San Felipe de Barajas Castle (Castillo San Felipe de Barajas)

Worth it if you're into military architecture or want proper views over Cartagena's old town—the 4.7 rating from nearly 4,000 reviews suggests it genuinely delivers. Go early morning to beat the tour groups, and the paid entry keeps crowds more manageable than free attractions, so you'll actually get space to wander the tunnels and ramparts without elbowing through masses.

Written by us from the live data above — never copied from anywhere. Ratings and counts update from Viator.