Cologne had a large Jewish population in the 12th and 13th centuries, and the foundations of a large neighbourhood have been uncovered as part of the new U-Bahn line construction, the plans for which also involved making improvements to the Roman Praetorium site and exhibit in the same area. A new Jewish museum based on these discoveries is set to rise behind the Rathaus, with work begun in 2012 but unlikely to be completed until at least 2017. In the meantime, at times the subterranean parts of a medieval synagogue here are open to the public. Visit the work site for more details.
