Be sure to have a full tank of gas, because Cologne is worth making a detour for. Situated 45 miles from Attendorn, it has some terrific attractions, such as Cologne Cathedral and RheinEnergieStadion. Nothing says living big like a road trip does, so keep on driving to Düsseldorf. It’s 50 miles away and also has a few rewarding sights, such as Rhine Tower and Duesseldorf City Hall.