At the Judengasse Museum, we learned that on Kristallnacht, the Nazis destroyed the two synagogues in Frankfurt.
From Wikipedia:
Beginning on November 9, the SA and Hitler Youth shattered the windows of about 7,500 Jewish stores and businesses, hence the name Kristallnacht (Crystal Night), and looted their goods. Jewish homes were ransacked all throughout Germany. Although violence against Jews had not been explicitly condoned by the authorities, there were cases of Jews being beaten or assaulted. Following the violence, police departments recorded a large number of suicides and rapes.
The rioters destroyed 267 synagogues throughout Germany, Austria, and the Sudetenland. Over 1,400 synagogues and prayer rooms, many Jewish cemeteries, more than 7,000 Jewish shops, and 29 department stores were damaged, and in many cases destroyed. More than 30,000 Jewish men were arrested and imprisoned in Nazi concentration camps; primarily Dachau, Buchenwald, and Sachsenhausen.
The synagogues, some centuries old, were also victims of considerable violence and vandalism, with the tactics the Stormtroopers practiced on these and other sacred sites described as “approaching the ghoulish” by the United States Consul in Leipzig. Tombstones were uprooted and graves violated. Fires were lit, and prayer books, scrolls, artwork and philosophy texts were thrown upon them, and precious buildings were either burned or smashed until unrecognizable. Eric Lucas recalls the destruction of the synagogue that a tiny Jewish community had constructed in a small village only twelve years earlier:
It did not take long before the first heavy grey stones came tumbling down, and the children of the village amused themselves as they flung stones into the many colored windows. When the first rays of a cold and pale November sun penetrated the heavy dark clouds, the little synagogue was but a heap of stone, broken glass and smashed-up woodwork.
The Daily Telegraph correspondent, Hugh Greene, wrote of events in Berlin:
Mob law ruled in Berlin throughout the afternoon and evening and hordes of hooligans indulged in an orgy of destruction. I have seen several anti-Jewish outbreaks in Germany during the last five years, but never anything as nauseating as this. Racial hatred and hysteria seemed to have taken complete hold of otherwise decent people. I saw fashionably dressed women clapping their hands and screaming with glee, while respectable middle-class mothers held up their babies to see the ‘fun’.
Not only did they destroy these places of worship, the Jewish community was forced to pay for the removal of the rubble. The stones that were salvaged were used to build the walls around the main city cemetery that is just across the street from where we live.
This is our favorite place to go walking. I will never again look at these stone walls in the same way. They would speak to us if they could. We must never ever forget the story they would tell.
Our Frankfurt Germany Mission 