Quinta da Regaleira was built by António Carvalho Monteiro, a wealthy Portuguese nobleman and Freemason. Designed by Italian architect Luigi Manini, the estate weaves together Gothic, Manueline, and Renaissance styles with esoteric symbolism. You'll find references to the Knights Templar, alchemy, and ancient mythology carved into arches, hidden in garden structures, and embedded in the Initiation Well’s spiral descent.