Photo: Istanbul Metropolitan Municipality
Ancient cities carry ancient secrets under modern streets and buildings.
The tunnels consist of brick walls and arches, two rooms and a connecting tunnel.
The subterranean complex was originally discovered in the 1960s but was stopped up with earth for preservation.
Photo: Istanbul Metropolitan Municipality
Rediscovering the ruins and the former church has ensued.
The church was finally destroyed in 1204 during an attack by European crusaders.
It has the potential to tell us much about the early practice of Christianity in the Byzantine Empire.
Photo: Istanbul Metropolitan Municipality
Photo: Istanbul Metropolitan Municipality
Photo: Istanbul Metropolitan Municipality
