Salzlager

With a production capacity of more than 23,000 tonnes of raw coal per day, the Zollverein colliery was once the most efficient colliery in the world. The central shaft XII, built from 1928 to 1932 according to plans by Fritz Schupp and Martin Kremmer, is considered a technical and aesthetic masterpiece of modernity. In 2001, the site was officially inscribed on the UNESCO World Heritage List as the Industriekomplex Zeche Zollverein. The coke oven Kokerei Zollverein was built from 1957 to 1961 in cooperation with the coal mine Zollverein.

The salt warehouse, where fertiliser was produced from ammonia and sulphuric acid until the 1980s, is located on this site. Today, the site is home to the walk-in installation Palace of Projects by artists Ilya and Emilia Kabakov.