Located on the edge of Parc de la Ciutadella, the Castle of the Three Dragons had to function as an architectural feature and as a café-restaurant during the months of the Universal Exhibition of 1888. However, some problems that arose during the execution of the work led Lluís Domènech i Montaner to abandon the project, and it was finished by another architect shortly before the Exhibition ended.

Notwithstanding the relatively modest success of its beginnings, the Castle of the Three Dragons, which took its name from a play by Serafí Pitarra, soon became a symbol of Modernista Barcelona.

The Castle of the Three Dragons brings together some of the most characteristic features of Catalan Modernisme: brick construction employing majestic and fanciful shapes (in this case, a castle with a square floor plan and four towers), the use of wrought iron and ceramics for the decor, etc.

The building has had many uses since it was built: a few years after the end of the Universal Exhibition, it reopened as a Museum of History, and in 1920 it was re-furbished to house the Museum of Zoology. It is currently one of the four main centres of the Museo de Ciencias Naturales and is dedicated to the research, conservation and dissemination of the museum’s collections as well as the publication of specialised works. A large part of its data are accessible online through the Global Biodiversity Information Facility portal.