Established in 1806, it holds more than 150,000 tombs on 34 hectares (83 acres), making it one of the largest Jewish cemeteries in Europe. Ludwik Zamenhof, the creator of the Esperanto language, was among those buried here. Although the site was relatively unscathed during the war, many of the headstones are now barely legible or crumbling, and the grounds are overgrown. It is a poignant "memorial" and not to be missed.