Duration
Open today
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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.
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Discover fascinating exhibits on celestial mapping, historic instruments, and meteorites, revealing the Vatican’s long-standing engagement with astronomy.
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Take in sweeping views of Lake Albano from the domes, blending historical discovery with breathtaking scenery.
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This self-guided experience lets you journey through centuries of astronomical discovery and the Vatican’s fascination with the cosmos.
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Access to major and minor observatory domes
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Access to the third floor of Apostolic Palace
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Audioguide
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Guided tour
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Access to secret garden
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Minibus tour of extended gardens
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Transport to and from Rome
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These tickets can't be cancelled or rescheduled.
Step inside the observatory domes of Castel Gandolfo’s Papal Palace for a self-paced journey through history and science.
Getting started
Begin at the main entrance of the Apostolic Palace, where your ticket will be validated. After a brief security check, set off to explore at your own pace.
What to expect
Castel Gandolfo's Observatory Domes
Discover the twin domes at Castel Gandolfo's Apostolic Palace, a unique space blending history, architecture, and science. These domes open a window into the Vatican’s lesser-known contributions to astronomy and innovation.
Features
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Historical insight: Admire the design and craftsmanship of the domes while learning how they played a role in the Vatican’s scientific legacy.
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Interactive exhibits: Explore displays on celestial phenomena, meteorites, and early astronomical instruments.
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Panoramic views: Take in breathtaking vistas of Lake Albano from these elevated vantage points, combining natural beauty with scientific intrigue.
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What to bring
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Arrive at your scheduled time slot with a photo ID matching the name on your booking to ensure a smooth entry process.
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Wear comfortable walking shoes, as you’ll be exploring both the palace and the observatory domes.
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Carry a bottle of water, especially in warmer months, as you may spend considerable time outdoors.
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Follow Vatican dress etiquette by covering your shoulders and knees. A light scarf or shawl can be handy.
What’s not allowed
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Large bags, suitcases, and oversized luggage are prohibited for security reasons.
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Only registered service animals are allowed; pets are otherwise not permitted.
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Food and drinks cannot be consumed inside the palace or dome areas.
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Alcohol, drugs, and any form of intoxication are strictly forbidden on site.
Accessibility
- The domes are located on the third floor and are generally not accessible to visitors with mobility impairments or those using wheelchairs.
Additional information
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This ticket does not grant access to the secret gardens, the minibus tour of the extended gardens, or any guided tours.
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Transport is not included. You can reach the venue by car, bus, or train from Rome in about 40 minutes.
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Your voucher will be emailed to you shortly.
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Display the voucher on your mobile phone with a valid photo ID at the starting point.
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Please check your final voucher for the starting point details & specific instructions.
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