Castelo do Castro

Vigo, Spain, Spain

---

Castelo do Castro, perched on Monte do Castro hill overlooking Vigo in Pontevedra province, Galicia, Spain, originated as a pre-Roman Castro settlement from the 3rd century BCE with circular stone dwellings characteristic of Celtic hill forts, later overlaid by medieval fortifications.

Rebuilt in 1665 during the Portuguese Restoration War as a strategic Spanish fortress alongside San Sebastián citadel and city walls to repel English naval threats, it featured bastions, ramparts, and artillery positions but proved vulnerable during sieges like the 1702 Battle of Vigo Bay and 1719 English invasion. 

Occupied by French forces in 1809 before local reconquest earning Vigo its "loyal and courageous" title, the site now blends archaeological ruins, manicured gardens, and a modern park offering panoramic estuary views as a cherished urban oasis.