Who donated $125,000 to the Troy location of the private research university and space grant institution?  
Carnegie Building:  The four-story building is named for Andrew Carnegie who donated $125,000 for its construction, which was completed in 1906. Rensselaer Polytechnic Institute: Rensselaer Polytechnic Institute ( ), or RPI, is a private research university and space-grant institution located in Troy, New York, with two additional campuses in Hartford and Groton, Connecticut.
Andrew Carnegie