Green forest and Pena Pacale in Sintra, pan right view

green forest pena palace sintra pan right view portugal building architecture park colorful europe castle yellow skyline tourism unesco portuguese lisbon fortress tower royal landmark history lisboa heritage moorish portugal architecture exterior portugal europe portuguese culture famous landmark famous place historical building national national palace palace of pena famous world heritage site unesco world heritage site european lisbon district portugese building exterior palacio da pena travel destinations colourful pena castle