Forte di Capo Passero, 16th century fort on Isola di Capo Passero, Italy

Forte di Capo Passero is a square fort with 35-metre sides on the highest point of the island of Capo Passero. Its lower level rises 4 metres from the ground without openings, and the upper floor is reached by an L-shaped stair on the east side. The walls are of plastered limestone rubble with sandstone blocks at the corners, and a 12-metre square courtyard holds a central cistern.

Spanish authorities built this fortification in 1599 as a defensive structure against pirate raids and to protect important maritime trade routes. It formed part of a broader coastal defense network that guarded the southern Italian coast from sea-based threats.

The fort's chapel is dedicated to the Virgin Annunziata, and the tomb slab of Lope Medrano, castellan from 1623 until his death in 1631, is still visible there. His handwritten will, incomplete, asks to be buried "sutta la fonti di l'acqua beneditta". The entrance architrave of one soldiers' quarters carries an inscription.

You can reach the fortification by taking small boats from Portopalo di Capo Passero, with local fishermen typically offering transport during warmer months. Check water conditions before traveling and be prepared for rougher seas on windier days.

The fort's square perimeter measures 35 metres per side, with a base rising 4 metres from the ground and no external openings. Inside, a central cistern collected rainwater through a gutter system. On the northeast corner, a small lighthouse was added in 1871, visible from 10.8 nautical miles.