The Montagsloch was a building project in Essen during the time of National Socialism in Germany. It would have become one of the biggest stadiums in Germany.

A memorial stone

Its name may refer to the day when 35 Russian forced labourers were killed by the Gestapo of Essen at this place. It was on March 12, 1945, a Monday (in German, Montag). Some of the murderers were judged to long term prison sentences by a British military court in 1948.

51°25′28.64″N 6°59′41.33″E / 51.4246222°N 6.9948139°E / 51.4246222; 6.9948139