Quinta da Regaleira is an estate located near the historic center of Sintra, Portugal. It is classified as a World Heritage Site by UNESCO within the "Cultural Landscape of Sintra". Along with the other palaces in the area such as the Quinta do Relógio, Pena, Monserrate and Seteais palaces, it is considered one of the principal tourist attractions of Sintra. Info Courtesy Wiki - Photos courtesy Taylor Moore