Miquel Barceló's ceiling

Barceló's 16,000-square-foot (1,500-square-meter) ceiling was unveiled in November at the United Nations' European headquarters in Geneva, Switzerland. The Spanish artist spent 13 months apply the more than 100 tons of paint with pigments from all over the world. The work is supported by an extra-strength aluminum structure.

In Spain there is some controversy over the cost of the project & the fund which was used for it (there are claims that it came out of the budget for overseas development aid and international organizations like the United Nations and would have been better used to alleviate poverty).

Artdaily.org says about the artist:

Miquel Barceló is renowned for the extraordinary diversity and originality of his work, which has ranged from a series of spectacular terracotta murals for a chapel in the cathedral in Palma de Mallorca to a mesmerizing performance piece/living sculpture with the Hungarian/French choreographer Josef Nadj. Barceló's amazing creative output has been compared to such great Spanish masters as Pablo Picasso, Joan Miró and Antoni Tapies and to outstanding contemporaries European artists such as Francesco Clemente and Anselm Kiefer.

Born in Majorca in 1957, Miquel Barceló studied at the School of Arts and Crafts in Palma and the Fine Arts Academy in Barcelona. In 1974 he held his first solo exhibition at the Galería d'Art Picarol, Cala d'Or, Majorca. During the 1980s he traveled in Europe, the United States and West Africa and in 1982 he achieved international acclaim for his participation in Documenta 7 in Kassel. Barceló works with a wide-range of media and projects, from paintings and drawings, to backdrops for opera, murals and engravings, and terracotta and ceramic sculptures. From 2001 to 2006 Barceló worked on a project for the cathedral in Palma, covering an entire chapel in terracotta and then decorating it with images relating to the sixth chapter of the gospel of St John. Recent solo exhibitions include Pinacoteca do Estado, São Paulo, 2003; Musée du Louvre, Paris, 2004; Galerie Bruno Bischofberger, Zürich, 2005, and Sala Kubo, San Sebastián, 2005. Barceló currently lives between Paris, Majorca and Mali.