exterior of national palace of pena

fortification architecture romanticist ferdinand architect monastery cathedral exterior national designed portugal eschwege landmark building wilhelm tourism palace castle ludwig sintra estate church pedro tower pena town von ancient antique architecture art beautiful building castelo castle colorful colours culture european exterior famous fantasy forest fortress gothic heritage hill historic history landmark lisbon magical medieval moorish mountain national old palace panorama park pena portugal portuguese red romantic royal royals sintra sky surrounding walls tourism tower travel unesco view yellow