Castell de Montfalcó stands at the heart of Montfalcó Murallat, one of Catalonia's finest preserved medieval villages in the Les Oluges municipality. Built around the 11th century and documented from 1043, this fortress exemplifies a closed medieval town with an intact perimeter wall measuring 8 meters high and 1 meter thick. Access enters through a distinctive double-angled gate, with houses built against the interior walls on the limestone foundation. The castle survived significant sieges during the 15th-century Catalan Civil War and the 17th-century Reapers' War, its defensive architecture proving resilient through centuries of conflict. This exceptional example preserves the authentic character of a feudal stronghold and its integrated community.