Erfurt Cathedral (officially Hohe Domkirche St. Marien zu Erfurt, English: Cathedral Church of St Mary at Erfurt), also known as St Mary's Cathedral, is the largest and oldest church building in the Thuringian city of Erfurt, central Germany. It is the episcopal seat of the Roman Catholic Diocese of Erfurt.

The cathedral was mainly built in the International Gothic style and is located on a hillside overlooking the main town square (Domplatz, Cathedral Square).

The architecture of Erfurt Cathedral is mainly Gothic and originates from the 14th and 15th centuries. The building has many notable architectural features, including the stained glass windows and the interior furnishings. The central spire of the cathedral's three towers houses the Maria Gloriosa.

Maria Gloriosa, or the Erfurt Bell, is a well-known bell of Erfurt Cathedral, cast by Geert van Wou in 1497. The world's largest medieval free-swinging bell, it is now swung electrically. It was welded in 1985 to repair a crack, then, in August 2004, the bell was re-fused due to another crack from 2001.

Diameter: 8 feet 5 3/4 inches [2584mm], weight: 13 tons 15 cwts. [12555 kg]. It is about 2 meters tall.

According to en.wikipedia