Castel Gandolfo Observatory Domes Tickets

- Visit the twin domes of the third-floor observatory, now open after almost 100 years, to explore the spaces where papal astronomers observed the stars. - Discover fascinating exhibits on celestial mapping, historic instruments, and meteorites, revealing the Vatican’s long-standing engagement with astronomy. - Take in sweeping views of Lake Albano from the domes, blending historical discovery with breathtaking scenery. - This self-guided experience lets you journey through centuries of astronomical discovery and the Vatican’s fascination with the cosmos.