🏛️ Paleochristian and Byzantine Monuments of Thessalonika: Rotunda
Early 4th-century Roman monument spanning pagan, Christian, and Ottoman periods
📋 Fast Facts
- UNESCO World Heritage Site—part of collective designation for Paleochristian and Byzantine monuments of Thessaloniki
- Built early 4th century AD under Roman Emperor Galerius
- Functioned sequentially as imperial mausoleum, Christian church, Ottoman mosque, and modern museum
- Located in central Thessaloniki, Greece; coordinates 40.633269, 22.952714
The Rotunda of Galerius stands as one of the oldest surviving monumental structures in Thessaloniki, representing exceptional Roman architecture from the early 4th century AD. Originally commissioned by Emperor Galerius as part of his palatial complex, the building has undergone successive religious and functional transformations across nearly 1,800 years. It now operates as a museum and forms a key component of the UNESCO World Heritage Site encompassing Thessaloniki's paleochristian and ...