Template:POTD/2012-09-04
The nave of the Hagia Sophia Church, the second oldest church in the Bulgarian capital Sofia. The present basilica dates to the 6th century and is believed to be the fifth structure to be constructed on the site. The city took its name from the church in the 14th century. It is now one of the most valuable pieces of Early Christian architecture in southeastern Europe.Photo: Plamen Agov