a portuguese flag flies over da pena royal palace, pal�cio da pena, or castelo da pena as it is more commonly known, the most co

period architecture attraction battlement building castle city de district dwelling enchantment europe exterior facade flag fortification heritage landmark lisboa luxury majestic monument nacional national neogothic neoislamic neomanueline neorenaissance nobody opulence or outdoors palace palacio parapet pena portugal portuguese romantic sintra site style tourism tourist tower town travel wall western world