The Callatis Archaeological Museum in the centre of Mangalia documents the remarkably long history of settlement on this site — from Thracian prehistory through Greek colonisation, Roman rule, and the Byzantine period up to the Ottoman conquest. The collections include Greek inscriptions, pottery, coins, jewellery, and sculpture, plus a reproduction of the mosaic floor found in the ancient necropolis.
Visible outside, embedded in the modern streetscape, are sections of the ancient Greek city walls and the remains of early Christian basilicas. The museum provides the best context for these fragmentary ruins, which can otherwise be difficult to interpret without background knowledge. A visit of an hour or so is adequate, and the museum is well priced.