Forte Stella, Military museum fort in Porto Ercole, Italy
Forte Stella is a fortress with a distinctive hexagonal star layout located in Porto Ercole on Monte Argentario. The structure features tall curtain walls, corner bastions, and multiple defensive ditches that define its outer perimeter.
Forte Stella was built by the Spanish in the second half of the 16th century, when the area joined the State of the Presidi. Cosimo I de' Medici entrusted the design to Bernardo Buontalenti and Giovanni Camerini in 1558, on the site of the older Forte Sant'Ippolito, partly reused. A 1646 depiction still shows it unfinished; completion came only in the second half of the 17th century.
The fortress now hosts contemporary art exhibitions, especially during summer months. Visitors experience how military architecture and modern cultural programming coexist within these historic walls.
Access to the fortress involves a long northeastern ramp that leads to a round-arched gate, with a bridge crossing to the main complex. The site is generally walkable but requires sure footing on uneven historic surfaces.
The summit terrace served as a signal station: sentinels watched the coast from the Argentario to Capo Linaro and sent light signals to other towers. At the eastern point of the inner fort, one original sentry box with a bell-cote survives; each point of the star once had one. Natural light reaches the interior through a hexagonal opening at the centre of the terrace.
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