The large cathedral treasury contains over 600 objects of art, dating from the 5th to the 18th century, including a unique textiles collection.

[1] Many very valuable items are of Byzantine origin, having been brought to Halberstadt in 1205 by Bishop Konrad von Krosigk who had participated in the Fourth Crusade's sack of Constantinople.

In 2000, the time elapsed since the organ's installation- 639 years- was chosen to be the length of a performance of American composer John Cage's As Slow as Possible.

The performance began in 2001 at the St. Burchardi church in Halberstadt, and is due to end in the year 2640.

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