Scan the World might be one of the only institutions where visitors are encouraged to handle the most-valued sculptures and artifacts from art history. The open-source museum hosts an impressive archive of 18000 digital scans—the eclectic collection spans artworks like the “Bust of Nefertiti,” the “Fourth Gate of Vaubam Fortress,” and Michaelangelo’s “David” in addition to other items like chimpanzee skulls—that are available for download and 3D printing in a matter of hours.