The Château Observatoire Abbadia, located on the cliffs of Hendaye overlooking the Atlantic Ocean, is a unique architectural and cultural landmark in the Basque Country. Built between 1864 and 1884, it was commissioned by the renowned scientist and explorer Antoine d’Abbadie as both a residence and a scientific observatory.

Designed by the Gothic Revival architect Eugène Viollet-le-Duc and later completed by his collaborator Émile Boeswillwald, the château combines neo-Gothic architectural elements with eclectic influences inspired by d’Abbadie’s travels. The building’s intricate exterior features turrets, gargoyles, and ornate carvings, while the interiors showcase vivid colors, symbolic decorations, and exotic motifs that reflect d’Abbadie’s passion for exploration and his interest in various cultures.

The château’s primary purpose was to serve as an observatory for astronomical research. D’Abbadie, a geographer, linguist, and member of the French Academy of Sciences, made significant contributions to cartography and astronomy, using the observatory to map stars and advance scientific knowledge. The observatory’s dome and equipment are preserved, offering visitors a glimpse into 19th-century scientific practices.

In addition to its scientific significance, the Château Observatoire Abbadia reflects Antoine d’Abbadie’s dedication to preserving Basque culture and language. A passionate advocate of Euskara, he supported its study and documentation, becoming an important figure in the Basque cultural revival of the 19th century.

Today, visitors can explore the richly decorated rooms, learn about d’Abbadie’s life and achievements, and enjoy the surrounding parklands. The 15-hectare estate, with its dramatic coastal views and walking trails, enhances the château’s appeal as a destination for history, science, and nature enthusiasts alike.

More information: https://www.chateau-abbadia.fr/en/