Treblinka memorial, Memorial monument in Treblinka, Poland.

Treblinka memorial is a monument built on the site of a former Nazi extermination camp, consisting of thousands of granite stones arranged on a concrete foundation to represent Jewish graves. The site includes an exhibition center that displays educational materials and historical documents about what happened there.

Treblinka II operated from July 1942 as one of three extermination centres of Operation Reinhardt; at least 780,863 people were killed there. On 2 August 1943 an uprising broke out and about 400 prisoners escaped. The Germans dismantled the camp by 17 November 1943, removing the fence and buildings and sowing lupin over the filled mass graves. The memorial designed by Franciszek Duszeńko and Adam Haupt was unveiled on 10 May 1964.

The monument was designed by sculptor Franciszek Duszeńko and architect Adam Haupt, chosen in a 1955 closed competition and unveiled on 10 May 1964 after nearly nine years of delays and funding shortages. Its form is often compared to the Western Wall in Jerusalem, and the granite blocks carry the names of the countries and cities from which Jews were deported to Treblinka.

The site is spacious with paths between the stones that allow visitors to move through at their own pace and take time for reflection. A visit typically takes several hours and benefits from approaching with an open mind and emotional readiness.

A single stone bears the names of children and specifically honors Janusz Korczak, a teacher and writer who died with the children in his care. This stone stands apart from all others because of its personal dedication.