So happy we signed up for the Jewish heritage tour although it was hard to listen at times. Persecution of Jews began as early as the medieval ages and they were blamed for every bad thing including the Black Death and World's War I - even though their population was always small. During WW II, bombs destroyed 95% of the city. Our guide interspersed sad stories with lighter locales such as an amazing Roman mosaic tile floor and where eau de cologne was invented in 1709.
We climbed the 500+ steps of the spire of the stunning Gothic Cathedral.
Our reward was a tasty grill lunch and a local beer on the sundeck of our ship.