One of the landmarks of Portugal's Sintra province is the Monserrate Palace. Seen here in this drone video by flymydr8ne, the palace dates to the late 18th century. It was built on the ruins of a structure which was destroyed in the great 1755 Lisbon earthquake. The building was visited by the great poet Lord Byron in the eary 19th century, who mentioned it in his poem Childe Harold's Pilgrimage. Extensively modified in the mid-1800's, the manor is part of the Sintra Hills UNESCO World Heritage site.