Forte do Alto do Duque - Free Audio Guide

Forte do Alto do Duque is situated in the southwest of Parque Florestal de Monsanto in Lisbon. Constructed between 1875 and 1890 under the reign of D. Luís I, this military fortification was essential for the defense of Lisbon and was involved in events during the Spanish Civil War. Currently, it serves as the headquarters for the Lisbon Criminal Investigation Division. The fort features an irregular pentagonal design, surrounded by a moat and a central cistern. Visitors will find that the site offers both historical importance and stunning views. Check local resources for visiting hours, admission fees, and accessibility options to enhance your visit.