Gherardus de Wou

Workers inspect the bell during the annual maintenance at the Gloriosa bell in the Mariendom (Cathedral of Mary) in Erfurt, central Germany,Wednesday, Sept. 4, 2013. T The tulip-shaped bell,  has a diameter of  2.57 meters (8.4 feet) and was made by  Dutch  Gherardus de Wou  in July  1497. (AP Photo/Jens Meyer)

Jens Meyer/AP

The Gloriosa bell receives its annual maintenance inspection in the Mariendom (Cathedral of Mary) in Erfurt, Germany. The tulip-shaped bell, which is the world’s largest medieval free-swinging bell and is now swung electrically, was made by Dutchman Geert van Wou in July 1497