The Externsteine, a striking row of natural sandstone pillars in the Teutoburg Forest, is a place where the documented past is modest and the claims made about it have been large.
What can be shown
The pillars are a natural formation. The clearly datable human work on them is medieval and Christian: a large relief of the Descent from the Cross, carved into the rock in the twelfth century and among the most important Romanesque sculptures north of the Alps, and rock-cut chambers associated with a hermitage or monastic use. One upper chamber has a circular window aligned so that it catches the sunrise at the summer solstice, which has fuelled much of the site's reputation.
The Germanic-sanctuary claim
From the nineteenth century, and intensively under National Socialism, the Externsteine was promoted as a great pre-Christian Germanic sanctuary, a Saxon holy place supposedly destroyed by Charlemagne, sometimes linked to the world-tree Irminsul. Excavations carried out in that period to prove such origins found no convincing evidence of pre-Christian cult use, and mainstream archaeology does not support the idea that the site was a major pagan sanctuary; the Germanic reading rests largely on later imagination and on the ideological uses to which the place was put.
A contested modern site
The distinction matters because the Externsteine remains contested. It is a nature reserve and a popular visitor destination, and it is also a gathering place for modern Germanic Heathens, Pagans and, at times, nationalist groups, particularly at the solstices. The honest account separates three things: a genuine natural landmark, a genuine and important piece of medieval Christian art, and a modern mythology of Germanic origins for which the evidence is lacking.