Originally published 07/31/2013
Conservators in Croatia have completed a ten-year project to remove more than 1,700 years of grime from the courtyard of the palace of the Roman Emperor Diocletian (AD244-311), in the coastal city of Split. Lasers were used as the primary method to clean the peristyle of the fourth-century imperial residence—an innovative technique that is normally reserved for cleaning individual sculptures or details of larger architectural elements, as opposed to whole structures. According to the architect Goran Niksic, who works for the city, this is the first time lasers have been used on this scale in Croatia to clean stone.
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