The museum is located in Iroou Square in the town centre and displays representative archaeological finds from all over Chalkidiki.

The museum is recently renovated and enriched with interactive boards and infrastructure for disabled people.

Particularly important are the finds from the city and the cemetery of Olynthos, of the Archaic and Classical period, because they give a full picture of the everyday activities and the public life of that time.

The museum has hosted an exhibition entitled 'Three Colonies of Andros in Chalcidice: Sane, Akanthos, Stageira since 1998.

Among many other things, it includes three standing or kneeling statues of Nike from the roof of a temple of the 6th century BC, which was originally at Sane and was later incorporated into the urban complex of Ouranoupolis.