The Martinskirche (St. Martin’s Church) in Linz was long considered the oldest church in Austria. The first written mention dates to the year 799. The current floor plan, however, results from a reconstruction probably dating back to the 10th or 11th century. The older Carolingian central building was excavated in 1978. The earliest remnants of the Romanesque wall suggest a rectangular room with a choir screen. In the following centuries the church was expanded. In the 15th century, the church was finally rebuilt in Gothic style.
Inside the Martinskirche you can see frescoes from the 14th and 15th centuries, as well as Roman tombstones with inscriptions from the 3rd century. There are also some gothic wood sculptures. Also famous is the copy of the “Volto Santo” image, which originated in the historic city of Lucca in Italy.
Read more about the Martinskirche on Wikipedia (German).
More free things to do in Linz and Upper Austria.