This cemetery, in the Jewish Quarter, was created in the 15th century when Jews were not allowed to inter their deceased outside of their quarter. Space was scarce, so bodies were buried on top of each other in an estimated 12 layers. There are approximately 100,000 people buried here. It is one of the most astonishing sights in the city. The surrealist author Franz Kafka frequented the old cemetery, which surely influenced his writing.