In 1956, the iconic Grand Canal in Venice, Italy, underwent a monumental cleaning and drainage operation, an exceptionally rare undertaking in the history of this unique city. To achieve this, enormous locks and barriers were built to stop the flow of water and allow the canal to be emptied. Workers dedicated themselves to digging up and cleaning the canal bed, which had been covered for years by layers of mud, debris and lost and lost objects. During this process, countless artefacts came to light that shed light on the history and daily life of the Venetians, including ancient coins, jewellery and centuries-old household items. In addition to its aesthetic aspects, the cleaning was crucial in improving the flow of water and reducing the risk of flooding that threatens the city. This event was not only historically significant, but also notable for its impact on the preservation and protection of this vital waterway.