Rotunda of Thessaloniki

The Rotunda of Thessaloniki is a monumental late Roman building whose long history includes major periods of Christian and Islamic religious use. It forms part of the UNESCO World Heritage property “Paleochristian and Byzantine Monuments of Thessalonika,” inscribed in 1988. The building originated in the Roman imperial complex associated with Galerius and was later converted into a Christian church, when its interior received exceptional early Christian mosaics.

UNESCO ranks the Rotunda’s mosaics among the masterpieces of early Christian art. During Ottoman rule the building was converted into a mosque and a minaret was added, creating another important layer in its religious history. In the modern period it has been conserved as a protected monument, with limited religious use rather than the continuous parish function of some other Thessaloniki churches.

The Rotunda is therefore included as a sacred heritage site with a layered history, not because of a miracle tradition. Visitors should understand its Christian imagery and surviving Islamic architectural evidence within the sequence of changing communities that used the building. Current access and any scheduled worship or events should be checked through Greek cultural authorities because conservation and programming can affect use.