Ключевые слова: arcane, architecture, attraction, cabalistic, cabbalistic, ceremonial, construction, cryptic, deep, estate, europe, european, freemason, gloomy, helix, high, historic, infrastructure, initiation, interior, inverted, landmark, mason, masonry, mossy, mysterious, mystery, mystic, mystical, old, orphic, palace, palacio, portugal, portuguese, property, quinta da regaleira, regaleira, sintra, spiral, staircase, stairs, stone, symbolic, tower, underground, weird, well, winding,