Swiss artist Ugo Rondinone has installed tree sculptures in the atrium of the former IBM Building at 590 Madison Avenue and 57th Street. The sculpture garden in the atrium is the perfect place to display the pieces, which are actually casts of olive trees from Basilicata. Ugo said that the olive trees are over 2,000 years old." Trees have been emblematic in his work, and Ugo said, "Trees are a natural sculpture. I don’t have to do anything. I make molds by sections, then do castings." Casts were made in 2009.