Young man with backpack walking through Montjuic castle hallway, visiting museum on sunny day on holiday and sightseeing historical military fortress

young man man backpack montjuic castle visiting visit sightseeing sightsee fortress travel traveling travelling historical military fortress castles castle stone stones inner courtyard medieval old ancient black backpack jeans white t shirt brown hair hallway hall arches arch stroll strolling walking walk forward men unesco cultural heritage barcelona spain catalonia catalan slow leisure relaxed