Clausthal - Zellerfeld

Clausthal-Zellerfeld, with a University of Technology which incorporates its 18th C Mining Academy, lies on the Oberharz plateau. In Zellerfeld, which was rebuilt on a regular grid after a great fire in 1672, stands the church of St Salvator (1674-83). Adjoining the church is the Calvörsche Bibliothek (Library; manuscripts of the Reformation period, etc.). On the north side of the square is the Oberharz Mining and Heimatmuseum.

Clausthal has the largest timber-built church in Germany, the Marktkirche (Market Church; 1639-42). Opposite it is the main building of the Mining Academy (Bergakademie; founded 1775), now housing the collections of the Institute of Mineralogy. In Hindenburgstrasse is the birthplace of the great bacteriologist Robert Koch (1843-1910).