The Frankfurter Tor is a large square in the inner-city Friedrichshain locality of Berlin. It is situated in the centre of the district, at the intersection of Karl-Marx-Allee and Frankfurter Allee with the Warschauer Straße and Petersburger Straße ring road. The Frankfurter Tor station, on the city's U-Bahn line, is located under the square.