Related Clues:
- Have breakfast, e.g., in Germany
- Big Bertha's birthplace
- Museum Folkwang locale
- German electricity-producing city
- City in the Ruhr
- Ruhr industrial center
- Where Big Bertha was built
- Bad ___ (Lower Saxony city)
- City of the Ruhr valley
- City near Düsseldorf
- It's near Gelsenkirchen
- Krupp steel hub
- Chief city of the Ruhr River valley
- Ruhr region
- Industrial city in Germany