If your trip to Heidelberg is all organized but your travel itinerary is looking a little empty, we can give you a helping hand.Heidelberg Castle deserves way more than just a quick drive-by. Get out of your car and spend some quality time getting familiar with this landmark sight during your time in Heidelberg.Stop by Church of the Holy Spirit. It's one sight you'll find on most travelers' must-do lists. If you still have some space on that travel schedule, Neckarwiese and Karl Theodor Bridge will keep you on the go as well.