Studentenkarzer — Uncover the Hidden Codes

Your quest begins in Universitätsplatz, at the heart of Heidelberg's old town, in front of the Alte Universität, the administrative seat of the university until 1912. Founded in 1386, this institution is Germany's oldest still in operation. The current building, erected between 1718 and 1735 under Elector Charles III Philip of the Palatinate, is the starting point for your exploration of Baden-Württemberg's historical heritage. The space under the stairs of this monument served as a Studentenkarzer before 1712, a discreet detention place for unruly students, offering a direct connection to the lecture halls through a communicating door.

Continue towards the Studentenkarzer, the famous student prison in use from 1823 to 1914, transferred to its current location in 1712 for sanitary reasons. Here, students incarcerated for offenses like duels or revelry attended daytime classes before partying at night, covering the walls with graffiti. These inscriptions, which you must decipher for your scavenger hunt mission in Heidelberg, include self-portraits, fraternity symbols, and caricatures of professors, testifying to student life of the era. The detention period varied from 24 hours to 4 weeks, a time often used to leave one's mark on this historical monument of Germany.

Upon exiting, the Haus zum Ritter, built in 1592 by wine merchant John Langheim, stands proudly. This Renaissance facade, adorned with statues of Roman emperors, is an architectural symbol of the historic merchant quarter, near Universitätsplatz. This building, in the heart of Heidelberg's old town, offers a glimpse into the prosperity of the 16th century, contrasting with the austerity of the nearby prison. Your interactive visit of Heidelberg will have you searching for clues embedded in these sculpted ornaments, revealing little-known aspects of the city's commercial and intellectual past.

Your journey then takes you to the Heiliggeistkirche, the parish church built around 1400, an example of late Gothic style. Its 48-meter-high tower dominates the old town, providing a visible landmark from many points on your thematic circuit. In 1621, the famous Palatine Library was installed in its gallery before being transferred to Rome in 1623. This place of worship was shared by Catholics and Protestants from 1698 to 1936, reflecting the religious tensions and complex history of Heidelberg. Nearby, the Alte Brücke, rebuilt in 1786-1788 after severe floods, offers a 193-meter crossing over the Neckar, its 9 pink sandstone arches and the statue of the Virgin from 1669 marking access to the historic quarter from the south bank.

Finally, the Heidelberger Schloss, residence of the Palatine Electors until 1720, completes your exploration. Its Renaissance castle ruins, with main construction spanning 1526-1610, house the world's largest wine barrel (127 m³), created in 1751. Visible from the old town and the Neckar riverbank, these vestiges offer a perspective on the city's past grandeur and that of Baden-Württemberg. Your Heidelberg scavenger hunt concludes here, leaving you with a deep understanding of Heidelberg's history, from the graffiti of rebellious students to the splendor of the Electors, proving that every stone in this city holds an anecdote, an enigma, a fragment of a story waiting to be discovered.