Pena Palace, hilltop castle in Sintra mountains and forest, Lisbon, Portugal

pena palace sintra palacio da pena castle portugal palace aerial view palacio fortress aerial world heritage site lisbon hilltop medieval panorama unesco wide shot moorish romanesque famous place middle ages on top of tourism heritage national monument landmarks hill landscape scenery architecture mountain picturesque green red landscape scenic travel gothic destinations outdoors idyllic no people nature forest journey eclectic yellow romanticist horizontal tree