Discover the astronomical observatories of the Vatican Observatory of the Papal Palace of Castel Gandolfo. Climb to the third floor of the palace and admire the view of Lake Castel Gandolfo from the panoramic terrace.
For the first time in almost ninety years since their construction, the astronomical domes of the Papal Palace of Castel Gandolfo are opening their doors to visitors. These are two perfectly functioning astronomical observatories of the Vatican Observatory: the “major dome” with a diameter of 8.5 meters, equipped with a Visual Telescope, for observing stars and planets; and the “minor dome”, with a diameter of 8 meters, with the Double Astrograph, used for photographic surveys of the sky and the position of the stars.
Access allows, via a spiral staircase, access to the third floor of the Papal Palace, on the highest point of the panoramic terrace.
Public transportation options are available nearby. Not recommended for travelers with spinal injuries. Suitable for all physical fitness levels. This activity is not permitted for children under 7 years old, for safety reasons.