The Archaeological Museum of Dion is one of the best regional museums in northern Greece. The collection is large, well displayed, and includes finds from over five decades of systematic excavation. You will need at least ninety minutes to do it justice.
The highlights are the hydraulis (water organ), a series of stunning marble statues from the Sanctuary of Isis, and the mosaic floors from the Roman baths. The funerary and votive objects from the Macedonian period illustrate the religious life of the ancient city. Labels are in Greek and English throughout.