Landmarks & Monuments in Thessaloniki

Thessaloniki's waterfront symbol: a 15th-century Ottoman tower that was once a fortress and prison. Inside, a museum on the history of the city runs from the ground floor up six storeys, and the top gives wide views over the Thermaic Gulf. Adult ticket €8 (2026); it closes mid-afternoon in winter.

A magnificent triumphal arch built around AD 300 to commemorate Roman emperor Galerius's victory over the Persians. Featuring intricate relief sculptures depicting military processions and sacrificial scenes, this partially preserved monument showcases exceptional Roman craftsmanship and provides insight into ancient provincial architecture.

Built by Galerius around AD 300, perhaps as a temple or his mausoleum, this perfectly circular structure was later converted into a church. The massive dome and intricate Byzantine mosaics are stunning examples of early Christian art. The building's acoustics and architectural proportions remain impressive even today.

Part of the UNESCO-listed Early Christian and Byzantine monuments of Thessaloniki.