Next to the semicircular apse of the Aula regia (Throne Hall), an archaeological shelter was erected in 2000. The accessible steel and glass construction preserves the extraordinarily well-preserved remains of a 12th-century Staufer heating system. Due to its shape, size and its condition, it is a unique testimony to the history of high medieval technology.
Detailed information on this heating system is provided on information boards on and in the protective structure. The key to the shelter can be borrowed from the visitor centre and the museum near the imperial palace.
During archaeological excavations in 1993 and 1997, two graves from the 9th or early 10th century were found in front of the apse of the Aula regia. found. Further information on these can be found on a plaque in the lower area, which corresponds to the historical walking level. At this point in the tour, it is also possible to climb a spiral staircase up to the almost ten-metre-high 12th-century defence wall. It offers an overview of the archaeological zone of the imperial palace of Ingelheim. Through the battlements you discover in the west St. Remigius Church to the west and the Rheingau to the north.
