One North Wacker

One North Wacker, formerly UBS Tower is a 50-story, 199 m (653 ft) skyscraper at One North Wacker Drive in Chicago, Illinois. Construction began in 1999 and was completed in the spring of 2002. References Other websites One North Wacker Archived 2012-09-04 at the Wayback Machine at Hines Interests Limited Partnership One North Wacker Architecture Archived 2011-07-07 at the Wayback Machine at Enclos