Winter who? Even some Germans have never heard of this sleepy mountain town across the river from Bonn. Take the 5 euro metro ride and 1.20 euro ferry over to Winterskönig where you can see one of Germanys least photogrpahed castles, Drachensfel. This is the perfect solo trip and easily done on a budget as entry to the mountain where the castle is set is compeltely free, unless you want to take the funicular or enter the castle itself. If you're up for a hike and some gorgeous views, put on your walking shoes and set aside a day to explore this unknown area of Germany.