sentence1: Only three buildings were wrapped by Christo: The Kunsthalle Berne, 1968, The Museum of Contemporary Art, Chicago, 1969 and The Wrapped Reichstag, Berlin, 1995, which is the third and last wrapped building -- it was initiated in 1961 first and then again in 1971. In 1971 the Valley Curtain was already well underway, and was not a wrapping.
sentence2: The Museum of Contemporary Art, Chicago, was wrapped by Christo.