The Church of Saint Sophia, also known as the Old Metropolitan Church, is one of the most significant and ancient landmarks of Nessebar. Located in the heart of the Old Town, which is a UNESCO World Heritage site, this basilica is an outstanding monument of early Christian architecture and a must-visit point in Bulgaria.

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The temple is an impressive three-nave basilica, built at the turn of the 5th and 6th centuries. Its impressive dimensions—about 25.5 meters long and more than 20 meters wide—still capture the imagination today. The interior was divided by two rows of five columns, and the central nave ended in a large covered apse. Although only ruins have survived to this day, their grandeur makes it easy to imagine the temple's former splendor.
The history of this site goes back to deep antiquity. Curiously, the church was built on the foundations of an even older structure—an ancient Temple of Apollo. The basilica acquired its current appearance after reconstructions in the 9th–11th centuries. Today, the open-air ruins of the temple create a unique atmosphere, allowing visitors to touch centuries of history and feel the spirit of time while walking among the ancient walls.