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It's just a single mosaic from a Roman bath house of 4th century AD, depicting the three daughters of Zeus skinny-dipping. The bath complex was extensive, a spa resort in effect, fed by natural springs. Only this patch has survived and in 1976 it was enclosed in situ within the museum building.
Cennet & Cehennem
Two chasms formed when underground caves collapsed. Go first to Hell 200 m north of the entrance as the walking route doesn't let you return from Heaven. Hell is the smaller, deeper chasm at 120 m and decorated by stalagmites, but there's no access into it, just peer from the glass platform into its green depths. In legend Zeus temporarily imprisoned the monster Typhon in Cehennem, before placing him beneath Mt Etna. Continue to Heaven, which is larger and 70 m deep. You descend by 300 ancient steps into a green Arcadian gully. At its south end is a further descent of 150 steps to the ruins of St Mary's 5th century monastery. You can hear the rushing of an underground stream, but over the centuries pilgrims have choked off its access with plastic trash. If you're lucky the elevator will be working to return you to the entrance, otherwise you have to lump back up the steps.