Situated 40 miles from Altena, Düsseldorf is a favorite stop on most people’s road-trip itineraries. Head here to access Rhine Tower and Duesseldorf City Hall, two excellent attractions to mark on your map. Cologne is another road-trip destination to consider. It’s situated just 40 miles away. If you make the journey here, Cologne Cathedral and RheinEnergieStadion should be on your must-do list.