Cologne Archeological Zone

The Cologne Archeological Zone lies beneath Rathausplatz and preserves remains from Roman and medieval times. Underground structures reveal how the city developed and changed across different historical periods.

The site emerged from excavations after World War II that uncovered substantial Roman walls and structures beneath the city. These discoveries led to the decision to preserve the archaeological layers under protective structures.

The site holds remains of a medieval mikveh and documents the presence of Jewish communities that lived in the city for centuries. Visitors can observe traces of these communities preserved within the underground structures.

Visitors can take an elevator down to view the underground remains where they are located. Wear comfortable shoes, as some underground pathways are uneven and require careful footing.

Beneath the square, visitors can see remains of a Roman governor's palace and ancient Roman sewage systems that remain remarkably well preserved. These underground engineering works demonstrate the sophistication of Roman urban planning in this early settlement.