Rotunda of Galerius

The Rotunda of Galerius stands as one of Thessaloniki’s most enduring monuments, bearing witness to the city’s complex and multicultural past. Built in the early 4th century AD, this massive cylindrical structure was originally commissioned by the Roman emperor Galerius, likely intended as his mausoleum or possibly as a temple. Its imposing brickwork walls, 30 meters high and over 6 meters thick, support a vast dome that dominates the skyline, making it a striking example of Roman engineering.

Over the centuries, the Rotunda has been transformed to suit the spiritual needs of Thessaloniki’s changing populations. It became a Christian church in the late 4th century, adorned with exquisite mosaics that still shimmer in the filtered light. During Ottoman rule, it was converted into a mosque, a period marked by the addition of a minaret that still stands today. Now a UNESCO World Heritage Site, the Rotunda is open to visitors eager to explore its unique blend of Roman, Byzantine, and Ottoman influences.