The 20-floor tower, rising to a height of 392 feet, is the tallest church in the U.S. and the second tallest in the Western Hemisphere. It contains offices, meeting rooms, and the 74-bell Laura Spelman Rockefeller Memorial Carillon. The carillon’s 20-ton bourdon bell is one of the largest tuned bells in the world. The smallest bell in our carillon weighs 10 pounds.