Lisbon, Belem tower's drone footage zooming in from the right hand side of the tower where the pedestrian bridge and the river can be seen as well as the buildings settlement behind the tower

architecture portugal tower lisbon lisboa europe belem landmark river portuguese famous travel building historic tagus water medieval tourism fort old castle fortress heritage sky tourist unesco manueline monument history place attraction city destination scenic european historical fortification gateway reflection gothic belem tower coastal sightseeing tagus river torre de belem picturesque defence tourist attraction