The world's second largest four-faced clock tower. It is owned by Allen-Bradley, a product brand of Rockwell Automation. It held the record for 48 years as the largest four-faced clock tower until a much larger one was built in Saudi Arabia at Mecca in 2010.
Compared to Big Ben's clock tower in London:
Tower height - 333.3 feet vs. 320
Clock face - 40.2 feet vs. 23
Minute hand - 20 feet vs. 14
Hour hand - 15.8 feet vs. 9
Hour marker - 4.1 feet vs. 2
Milwaukee newspaper article