Fabra Observatory | 1904 Dome Stargazing in Barcelona

About Fabra Observatory

Fabra Observatory (Observatori Fabra) is one of the oldest active observatories in the world, inaugurated in 1904 for the study of asteroids, comets, and seismic activity. Located on the slopes of Tibidabo in Collserola Natural Park, it offers both scientific heritage and stunning views of Barcelona.

The observatory was designed by Josep Domènech i Estapà, with scientific guidance from Eduard Fontserè and later Josep Comas i Solà. Its construction was made possible by a generous donation from Camil Fabra y Fontanills, the first Marquis of Alella. The building blends modernist architecture with astronomical precision and has been in continuous operation since its opening.

Today, Fabra Observatory offers guided daytime tours, night stargazing experiences, and the popular summer event Dinner with the Stars, combining astronomy with fine dining under the night sky.

History of Fabra Observatory

The idea for an observatory on Tibidabo hill began in 1895, when the Royal Academy of Sciences and Arts of Barcelona commissioned architect Josep Domènech i Estapà to design a facility for astronomical and seismic research. However, the project was delayed due to competition for the summit with the Temple of the Sacred Heart and a lack of funding.

In 1901, a generous donation from Camil Fabra y Fontanills, the first Marquis of Alella, revived the project. With additional support from the Provincial Council and Barcelona City Council, construction began in 1902. The design was updated by Domènech i Estapà, now working alongside astronomer Josep Comas i Solà.

On April 7, 1904, the observatory was officially inaugurated and named Fabra Observatory in honor of its patron. Since then, it has remained a fully operational scientific facility, contributing to research in astronomy, meteorology, and seismology.

Today, Fabra Observatory is not only a center of scientific study but also a cultural landmark, offering public tours and stargazing experiences that connect visitors with over a century of discovery.

Fabra Observatory Homepage

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Visiting Fabra Observatory

Explore the observatory’s rich scientific and architectural legacy through guided tours

Historic instrument museum on the ground floor
Ascent to the main telescope dome via a winding staircase
Access to the rooftop viewpoint overlooking Barcelona
Visit to the Noble lecture hall, secondary telescope, library, and study

Throughout the tour, you’ll learn about the observatory’s work in astronomy, meteorology, and seismology, as well as the lives of early 20th-century residents who maintained the site.

Daytime Guided Tours

Sundays & public holidays: 11:00 am (punctual start)
Duration: Approx. 90 minutes
Language: Catalan (Spanish explanations available upon request)
Access: Observatory gardens and viewpoint open 11:00 am to 1:00 pm

No reservation required. Meeting point is on the wooden deck in front of the main entrance.

Night Visits

Night tours include all daytime areas plus stargazing through the main telescope. Schedule varies by season — check the calendar via the Night Visits button. Price: €15 per person.

Dinner with the Stars

Held during summer months, this event combines outdoor diningscientific talkPrice: From €84 per person.

Fabra Observatory Guided Tours Fabra Observatory night telescope Diner with Stars

Accessibility & Visitor Tips

Fabra Observatory is a historic building with no elevator access between floors. All areas — including the telescope dome and rooftop — are reached via staircases, so visits may not be suitable for those with limited mobility.

Visitors are encouraged to bring only small bags or backpacks. Large bags, strollers, and bulky items must be left on the ground floor during guided tours.

There are no bicycle racks near the observatory, but bikes can be chained to nearby fencing if needed.

Fabra Observatory Summary of Prices

Train/Bus Fare Entry Ticket Additional Information Train/Bus Fare Entry Ticket Additional Information Adult Zone 1 T-casual € 3.00 Child € 1.25 FREE For under 14 Years Group/Family Ticket? No. Notes Visits only available 11h on Sunday. No reservation. required

Getting to Fabra Observatory

Fabra Observatory is located in Collserola Natural Park, near Tibidabo Amusement Park and Vallvidrera village. You can reach it via funicular, bus, or scenic forest trails: