
Fortalesa dels Vilars is an extraordinary Iron Age fortress located near Arbeca in Catalonia, inhabited continuously for 400 years from the 8th to 4th century BC. The Iberian settlement features a distinctive oval defensive system with walls five meters thick and equally high, reinforced by fourteen semicircular towers accessible through only two small gates. Sophisticated water management including a central well-cistern ensured access to fresh water during siege conditions. Discovered in 1975, this archaeological marvel represents one of Europe's best-preserved protohistoric sites, with its advanced defensive engineering and strategic positioning demonstrating remarkable sophistication in ancient Iberian military architecture.