Wetzlar Cathedral is a large church in the town of Wetzlar, located on the Lahn river some 50 km north of Frankfurt. Construction began in 1230 and is still unfinished, since the western front is still missing its northern belfry. Because of its long period of construction, the church combines romanesque, gothic and baroque architecture.
The church has never been a bishop's seat, and therefore is not a cathedral in the English sense. The German term for "cathedral", Dom, often includes churches that lack a cathedra and instead refers to any large medieval church. In Wetzlar, the main church has been called a Dom since the 17th century.
In 897, Rudolf I, Bishop of Würzburg consecrated a Salvator Church replacing an older church on the same location. In the early 10th century it became a Collegiate church devoted to St. Mary. Around 1170 the church was rebuilt into a romanesque basilica with two western spires. Parts of the western portal are still visible in the contemporary building.
After 1230, the cathedral was rebuilt and extended again. Construction lasted until 1490 and remained unfinished. The church became a Hall church with two towers.