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- Marks of the Floor Surface of the Old Cathedral
- Atrium Wall of the Old Cathedral
- Excavation of the Gothic Cathedral
- Baptismal
- Burials in the Entrance Hall of the Old Cathedral
- View into the North Axis of the Old Cathedral
- Floor in the Entrance Hall of the Old Cathedral
- Arch Foundation
- Arch Foundation
- Semi-Circular Passage like on the Plan of St. Gall
- Entrance into a Crypt from the Baroque Period
- Emundus Grave
- Foundation of the Western Apse, Old Cathedral
- Foundation of the Old Cathedral
- Foundation of a Pillar
- Section of Foundation, Gothic South Tower
- Foundations of the Choir Pillars, Gothic Cathedral
- Foundations of the Gothic Pillars
- Foundation Walls of Entrance Hall, Old Cathedral
- Heating System, Roman House under the Cathedral
- Cobbled Construction Street, Gothic Period
- Bell-Founding Pit
- Gothic Pillar Foundation
- Gothic Pillar Foundation
- Gothic Pillar Foundation
- Gothic Pillar Foundation
- Gothic Pillar Foundation
- Walls of the Crypt of the Old Cathedral
- Medieval Burials
- Modern Cement Ceiling
- Reconstruction of the Boy's and the Women's Grave
- Remains of the Old Cathedral
- Threshold of the Old Cathedral
- Late Antique Construction
- Late Roman Well, Merovingian Rests, Old Cathedral
- Baptismal Font from the Cologne Baptistery
- Divisional Wall between the Old and New Cathedral
- Tower Foundation of the Old Cathedral
- Filling Layers of Bell-Founding Pit
- Wall of a Roman House (Earliest Buildings)
- Gate of the Gothic Construction Site with Hinges
- Water Drain of a Roman Street
- Western End of the Old Cathedral
- Western Foundation of the Old Cathedral
Late Antique structures
A number of walls, most of which are from small-roomed buildings dating from the Late Antiquity, were uncovered in the excavations in this area. These walls made use of the substance of the arcades that once lined the Roman street that ran through this site. It was not, however, possible to recreate ground plans. However, the existence of a star-shaped channel heating system indicates that the square room was most likely part of a home or workshop. It is probable that new buildings were constructed here after Cologne was razed by the Franks, particularly in the years 355 and 356.