A mixture of artificial intelligence and painstaking research has allowed researchers to restore Rembrandt van Rijn’s The Night Watch to its original size, the Associated Press reports, centuries after it was trimmed down to fit in a smaller wall. The work was conducted as part of the Operation Night Watch project, and the results are being exhibited in the Honor Gallery in Amsterdam’s Rijksmuseum, which sees the original painting flanked by printed strips filling in the lost sections.