Theresienkirche, Baroque church in Aachen, Germany.
Theresienkirche is a baroque church in Aachen built with three-axial design, pilasters, and round-arched windows set in traditional brick. The building displays a segmental gable and sits within the city center's residential streetscape.
The church was built between 1739 and 1745 by Laurenz Mefferdatis for the Carmelite convent founded in 1662; Johann Joseph Couven designed the interior. In 1802 secularisation transferred it to the city. It burned out in 1943 after its 18th-century altars, pulpit and panelling had been moved to a moat for safety; recovered in 1945, they served only as models. Rebuilt in the 1950s, the furnishings were reconstructed in the 1970s.
The Romanian Orthodox community maintains the church and practices Eastern Orthodox traditions within this baroque structure. Visitors can observe the iconostasis and liturgical customs that differ from Western Christian churches.
The building sits near RWTH Aachen University and is easy to reach on foot from the city center. Regular Orthodox services take place on Sundays, and visitors are welcome to enter freely.
The church deviates from the typical east-west orientation of religious buildings and aligns instead with the local street grid. This uncommon alignment shapes how the structure sits within the city's urban fabric.
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