Hamm is a small city in the heart of the Ruhr Valley, once the industrial powerhouse of Germany. The city has reinvented itself in recent years, and is now a center for culture and the arts. The old factories and coal mines have been replaced by a lively nightlife and a thriving arts scene. The city center is a lively mix of old and new, with a modern shopping district and a charming old town. The Ruhr Valley is also a great place for hiking and cycling, and there are plenty of parks and lakes nearby.