The Iroon (The Memorial) found in the centre of the city in the homonymous square was built in the memory of the victims-executed during the Holocaust in Ypati on June,17 1944. That day which was a Saturday, the darkest page of the modern history of the town was written. The German forces in order to take revenge on Ypati, which was the base of operations for the ELAS Rebels, set fire, plundered and executed civilians and patriots. Military forces of the central German administration in Lamia attacked Ypati, executed 28 people, injured 30 and destroyed 375 out of the 400 houses of the town including byzantine churches and historic mansions.It was a Holocaust. For this reason Ypati was deemed to be a Martyr (Tormented) City.
It is located North of Gorgopotamos's Square.