Castrop-Rauxel is a city located in the Ruhr area of North Rhine-Westphalia, Germany. It is known for its industrial history and is part of the larger metropolitan area of the Ruhr region. The city has a population of around 75,000 people and is situated between the cities of Dortmund and Bochum. Castrop-Rauxel has a rich industrial heritage, with a history of coal mining and steel production. Today, the city has diversified its economy and is home to a range of industries, including manufacturing, logistics, and services. The city also has a strong cultural scene, with a number of museums, theaters, and art galleries.