Complex sentence: The original St. Clemens had a deep choir with apse flanked by three chapels on each side and these chapels are still visible today, showing the Romanesque pedestals, wall columns and arches.
Split into simpler sentences: The original St. Clemens had a deep choir with apse flanked by three chapels on each side. The chapels are still visible today, showing the Romanesque pedestals, wall columns and arches.