Not a lot of info in this release, unfortunately. "WARSAW, POLAND—Holocaust researchers from Israel’s Yad Vashem and Poland’s Majdanek State Museum announced that they have found the exact location of the building that housed the gas chambers at Sobibór, a Nazi death camp in occupied Poland that killed an estimated 250,000 Jewish people between April 1942 and October 1943. The Germans dismantled the camp during the war, after a prisoner revolt in which several German officers and guards were killed." http://www.archaeology.org/news/2521-140917-poland-sobibor-camp