This is the northern apse of the church we were visiting yesterday (here's a shot from outside). St. Aposteln is one of the 12 Romanesque churches in Cologne. It has a remarkable Trikonchos, that is a cloverleaf-like groundplan which can be seen best from above. No less remarkable is the octagonal steeple that caps the choir and that can be seen in this and yesterday's image (octagonal structure above the centre); its architecture remindes of Byzantine style. The construction history of this church ranges from the 11th to the 13th century; after its nearly total devastation in the war it had been reconstructed from the 1950s to the early 1980s. The paintings at the ceiling have been executed by the church painter Hermann Gottfried; they depict selected scenes from the Book of Revelation.