Castillo San Felipe de Barajas

The Story

Spain began fortifying this hill above Cartagena in 1536, and the castle grew across two centuries into the most formidable Spanish fortress in the New World. Its defining moment came in 1741 when British Admiral Edward Vernon attacked with 186 ships and 23,600 men — the largest naval force assembled in the Americas to that point. The Spanish garrison of 3,600, led by the one-armed Blas de Lezo, held for 67 days until disease and the fort's defenses broke the British assault. It remains undefeated in every military engagement in its history.

What Awaits You

Architecture: Massive bastion fortress on San Lázaro Hill, with overlapping angular walls designed so every surface is protected by another — plus an extensive tunnel system beneath
Cultural significance: The largest Spanish colonial fortress ever built in the Americas; successfully repelled the largest British naval assault in history in 1741
Landscape / setting: Elevated above Cartagena de Indias with commanding views over the bay, the city's walled old town, and the Caribbean Sea
Unique feature: The tunnel network beneath the fort — designed for troop movement and communication under siege — can be explored and creates a genuinely disorienting underground experience