A modest plaque, a small monument, and a row of memorial stones outside an unremarkable building near the river mark the site of one of the darkest events in postwar Polish history. On 4 July 1946, in the building at Planty 7 that then sheltered Jewish survivors of the Holocaust returning to Kielce, a mob — fired up by a blood-libel rumour that a Polish boy had been kidnapped — attacked the residents. Forty-two Jews and two Polish bystanders were killed. It was the worst antisemitic violence in Europe after the war, and it triggered the mass departure of the surviving Jewish community of Poland over the following months.
The interior of the building can be visited as a small commemorative space when staffed (check with the city tourist office). The exterior is open at all times. A grim and necessary stop for anyone trying to understand what happened in this part of Europe in the 1940s, and worth combining with a visit to the nearby site of the wartime Kielce Ghetto, of which little physical trace remains.