The Frankfurter Kreuz (Frankfurt Cross) is an Autobahn interchange in Frankfurt am Main, Germany, where the autobahns A3 and A5 meet. The interchange was originally to be built from 1931 to 1933, but due to World War II construction was not finished until 1957. It underwent massive remodeling in the 1990s, as it had been frequently overloaded due to excess traffic.