Those with a little more time in Heidelberg should take a walk up the Heiligenberg. The Heiligenberg and the Michelsberg are a part of the same mountain range on the northern bank of the River Neckar. You can access them by car or bus.

The so-called Thingstätte, an open-air theatre in the style of a Greek amphitheatre, was erected on an alleged Germanic cult site in 1935. 20,000 people were accommodated on the 56 spectator stands for the inauguration. Today it is a listed monument, but is gradually falling into ruin.

Above the Thingstätte are the partly renovated ruins of the Michaelsbasilika (St. Michael’s Basilica) from the 9th century. Finds from the time of the Celts, Romans and Franks have shown that there were Celtic buildings here before the construction of St. Michael’s Basilica.