Quote from Dr. Leonard Horowitz,
"The building that housed Germany's leading industrial organization prior to World War II, and for all practical purposes the Third Reich during the war, became CIA European headquarters immediately following the war. The marble decorated I.G. Farben building was intentionally spared from allied bombing runs. It was largely built by the 'Bayer Pharmaceutical' consortium that included the distributors of aspirin and heroin to U.S. markets by the 'Farbenfabriken of Elberfeld Co., 40 Stone Street, New York' according to a 1906 Medical Observer advertisement."