Sicily’s regional government has set a travel ban on 23 of its most important artworks, including a painting by Caravaggio, ancient Greek sculptures, and a rare collection of Hellenistic silver.

The ban was put into effect due to growing concern that Sicily’s most treasured holdings spend too much time outside of the country, causing their own museums to suffer. Officials also stated that loans to foreign museums “have not produced benefits” for Sicily and have not occurred under “conditions of reciprocity with the borrowing institutions.” By keeping the works in Sicily, officials hope to draw more tourists to the island.

The culturally rich island of Sicily has its own regional government, which operates individually within the Italian system. Sicily’s new policies differ substantially from Italy’s more flexible lending practices.