Depicts a vessel sailing floating under the twelve stars of the European Union, representing Europe. The issue year on the left, the monogram of the Italian Republic (RI) on the right, and the engraver's name below.

Depicts a detail of the church of La Sagrada Familia in Barcelona, the masterpiece of the architect Antoni Gaudí; on the left, the coin's value; below the architect's name and the mintmark “R”; around “Europe of Arts”.

The Basílica i Temple Expiatori de la Sagrada Família (Basilica and Expiatory Church of the Holy Family) is the largest unfinished Roman Catholic church in the world and is located in Barcelona, designed by Catalan architect Antoni Gaudí (1852–1926).

In 1882, construction of Sagrada Família started under architect Francisco Paula de Villar. In 1883, when Villar resigned, Gaudí took over as chief architect, transforming the project with his architectural and engineering style, combining Gothic and curvilinear Art Nouveau forms. Gaudí devoted the remainder of his life to the project, and at the time of his death at age 73 in 1926, less than a quarter of the project was complete.

Relying solely on private donations, Sagrada Familia's construction progressed slowly and was interrupted by the Spanish Civil War, only to resume intermittent progress in the 1950s. Since commencing construction in 1882, advancements in technologies such as computer aided design and computerised numerical control (CNC) have enabled faster progress and construction passed the midpoint in 2010. However, some of the project's greatest challenges remain, including the construction of ten more spires, each symbolising an important Biblical figure in the New Testament. It is anticipated that the building could be completed by 2026—the centenary of Gaudí's death.