Castell d'Olèrdola is an abandoned medieval hilltop village on the Turó de Sant Miquel overlooking the Penedès wine region south of Barcelona. This strategically significant settlement shows continuous human habitation from Bronze Age times through the 20th century, evolving through Iberian, Roman, and medieval periods. The castle complex, declared a Cultural Asset of National Interest in 1931, opened to the public in 1971 and now serves as a headquarters for the Museum of Archaeology of Catalonia. Preserved remains include castle fortifications, the Romanesque Church of Sant Miquel, and the Sant Miquel Necropolis showcasing High Medieval burial practices, making it a comprehensive archaeological and historical resource spanning millennia.
