The Carolingian Saint Justin's Church in Frankfurt-Höchst is the oldest building in Frankfurt/Main and one of the oldest churches still existing in Germany. It is dedicated to Saint Justin the Confessor.
The Catholic basilica originates from around 830, and the late gothic chancel was built from 1441. The church stands at the east of the old part of the town Höchst, looking over the Main river.
On the one hand, St. Justin's is important for its stonework, and on the other hand, it is important as being one of the few nearly completely surviving early medieval churches - which has been continuously used for around 1200 years.