In the heart of the old town lies the market square, boasting one of Heidelberg's many beautiful fountains, elegant townhouses, cafes, and even more charming little shops. And, of course, the famous Heiliggeistkirche (Church of the Holy Spirit). From here, it's just a short walk to Kornmarkt, considered by many to be the city's most beautiful square. Besides the electorate, it was primarily scholars who shaped Heidelberg's spiritual and cultural life for centuries. The university, in particular, the oldest in Germany, attracted prominent intellectuals. In the many cozy, old-fashioned student pubs, you can still experience the essence of the city today: a vibrant joie de vivre.

To understand the history of this imposing structure, which has witnessed so much over 700 years, a guided tour is highly recommended. Did you know that the world's largest barrel rests in the Prince's Cellar? Made from 130 oak logs, it has a capacity of 221,726 liters. Naturally, the castle's summer festivals are also a highlight.