1. The interior is octagonal with eight radiating chapels on the outer row. 2. The architectural plan of the church of Saint-Maclou includes radiating chapels . 3. The usual number of these radiating chapels is three. 4. Nine radiating chapels , similarly divided, surround the apse. 5. A deambulatory with radiating chapels developed around the church which preserved a part of its murals. 6. The vast proportions of the five-bay choir, with ambulatory and radiating chapels , dwarf the older nave. 7. The choir is covered by three bays and surrounded with an ambulatory and five radiating chapels . 8. The radiating chapels constitute a museum of paintings, retables, reliquaries and sculptures, accumulated throughout the centuries. 9. Radiating chapels are almost entirely a continental plan and most frequently found in French and Gothic structures.10. Construction started in 1895 with the choir and its radiating chapels , and on April 1, 1898 the cathedral was consecrated.