Praetorium (city map)
The foundations of the residence of the city's Roman governor (1st - 4th century) were uncovered under the Rathaus (city hall). A visit is like "taking an elevator back to Roman times". From the entrance to the Kleine Budengasse, there is also access to an old sewer system, exemplifying the engineering skills of Roman builders. Opening hours: daily except on Monday 10 a.m. - 5 p.m.

Roman Tower (city map)
The Roman Tower is an excellent example for the Roman fortifications and formed the northwest corner of the Roman Cologne. The northwestern corner tower was build in the first century a.D.. It is also famous for its well-preserved mosaic decoration.

Römisch-Germanisches Museum (city map)
The Römisch-Germanisches Museum gives an impressive account of the history of the Romans along the Rhine. The Roman mosaic with scenes from the world of Dionysos (around 220/230 A.D.) and the reconstructed tomb of the legionary Poblicius (around 40 A.D.) are probably its best known exhibits.

Weidener Grabkammer (city map)
The Burial Chamber in the West of Cologne was a Roman family Mausoleum on the road to Aix-la-Chapelle. The two-storied burial chamber, dating from the 2nd century, contains very elaborate funishings that are still extant. It shows busts with portraits of a married couple and a young woman or for example two in limestone copied basket chairs. Open Tuesday to Thursday 10 a.m. - 1 p.m., Fridays 10 a.m. – 5 p.m.