1. The Euphronios Krater

Ancient Greek artifact The Euphronios Krater was bought by the Metropolitan Museum of Art in 1972 but was thought to have been excavated illegally in Italy the year before. The ensuing investigation implicated American art dealer Robert Hecht and the Italian antiques dealer Giacomo Medici.

2. The Goddess of Morgantina

In 1988, the Getty Museum in California acquired a statue depicting a Greek goddess for an eye-watering £18 million. However, with its dubious accompanying provenance, suspicions begin to arise that it is actually a stolen artifact, leading to an investigation that finds alleged links to organised crime.

4. The Vase of Asteas

The remarkable story of how the Vase of Asteas was initially sold by the tomb robber who discovered it for a million lire and a pig, eventually finding its way to the Getty Museum in California, but how a chance car crash and a rogue Polaroid helped bring the unique artifact back to its place of origin.