Bird in Space

Constantin Brâncuși created the first Bird in Space in 1923, beginning a series of 16 sculptures that would occupy him for two decades. The form reduced a bird to pure upward thrust: a sleek, elongated ovoid balanced on a slender point. Brâncuși sought to capture not a bird's appearance but the essence of flight itself.

The sculptures caused legal controversy in 1926 when U.S. customs officials refused to classify one as art, instead taxing it as a manufactured metal object. Brâncuși sued, and the court's ruling that the work qualified as sculpture helped establish legal protection for abstract art. The case became a landmark in American art law.

Various versions exist in bronze, marble, and polished brass. The Museum of Modern Art in New York owns one of the finest bronze casts. Others reside in the Philadelphia Museum of Art, the Art Institute of Chicago, and the Centre Pompidou in Paris. A 1923 bronze sold at auction in 2005 for $27.5 million, then a record for sculpture.