Main Protestant parish church of the city. There probably was a church at this location as early as in the 12th century. The present building was started around 1380 and is a late-Gothic hall church. The 75 metre-high octogonal tower is topped by a Renaissance-style crest. An architectural anomaly is the underpass below the church's sanctuary and altar that served as the only passage to the (long disbanded) Cistercian convent behind the church during medieval and early modern times and was considered one of the "Seven Wonders" of Jena.