St. Gereon's Basilica
Germany
One of the oldest churches in Cologne, with a Roman building from the 4th century preserved in its walls. Its decagonal nave from 1227 is covered by a dome 34.55 m high.
Germany
One of the oldest churches in Cologne, with a Roman building from the 4th century preserved in its walls. Its decagonal nave from 1227 is covered by a dome 34.55 m high.