Cologne Roman-Germanic Museum

The Cologne Roman-Germanic Museum was established to house and display the archaeological legacy of Colonia Claudia Ara Agrippinensium, the Roman city founded in 50 AD that grew into present-day Cologne and gave the city its name. The museum's collection was assembled largely from finds unearthed within the modern city itself, most famously the Dionysus Mosaic, a large and exceptionally well-preserved 3rd-century floor mosaic discovered during construction work in 1941 directly beneath what became the museum building, and displayed today in situ at its original location and orientation. The collection also includes the funerary monument of Lucius Poblicius, a Roman legionary veteran, reconstructed from surviving fragments to its original multi-tiered height, along with an extensive display of Roman glassware for which Cologne's Roman-era workshops were particularly renowned across the empire. Galleries are organised thematically around daily life, trade, religion, and burial customs in Roman Cologne, supplemented by a substantial collection of jewellery, coins, and everyday objects that document the city's role as a provincial capital of Germania Inferior. Long-running renovation of the museum's main building, closed since 2018, has moved parts of the collection to a temporary exhibition space nearby, with the extensive Roman glass collection and Dionysus Mosaic remaining accessible to visitors during the works. The museum's holdings collectively represent one of the most complete records of Roman provincial urban life on the Rhine frontier, drawing on more than a century of archaeological excavation within Cologne's city centre.