His Grands Travaux included the Arab World Institute, a new site for the Bibliothèque nationale de France (BNF); a new opera house, the Opéra Bastille, opened in 1989 to celebrate the bicentennial of the French Revolution; a new Ministry of Finance in Bercy (the old Ministry had been housed in a wing of the Louvre), also opened in 1989. The Grande Arche in La Défense was also finished in 1989, a massive hollow cube-shaped building 112 metres high that completed the long perspective from the Arc de Triomphe du Carrousel through the Place de la Concorde and the Champs Élysées. The most famous project of all, the "Grand Louvre", included the expulsion of the Ministry of Finance, the reconstruction of large parts of the museum, an underground gallery, and the addition of a glass pyramid by I.M. Pei in the courtyard.[195]