Khan, in full Fazlur Rahman Khan, (born April 3, 1929, Dacca, India [now Dhaka, Bangladesh]—died March 27, 1982, Jiddah, Saudi Arabia), Bangladeshi American civil engineer known for his innovations in high-rise building construction. He is regarded as the "father of tubular designs" for high-rise buildings. Structures Designed: 875 North Michigan Avenue Date of death: March 27, 1982 Place of death: Jeddah Date of birth: April 3, 1929