The stone in the cobbles of cathedral square is a reminder of the public execution of the infamous poisoner Gesche Gottfried.
Please don't think the locals rude if you should see them spitting in Domshof square. It probably means that you are in the vicinity of the 'spitting stone'.
This stone was set into the pavement of Domshof square to mark the spot where Gesche Gottfried was executed. The spitting stone allows locals to convey their disgust for the notorious poisoner to this day.
Between 1813 and 1828, Gesche Gottfried murdered a total of 15 people with arsenic. Her motives remain the subject of speculation. On 21 April 1831, she was executed in Domshof square – the last public execution in Bremen.