Externsteine, North Rhine-Westphalia, Germany
Externsteine consists of five enormous rock pillars in northern Germany and has been regarded as sacred since prehistoric times.
It is thought to have been a pagan cultic center until Charlemagne abolished Saxon paganism in 782 AD. Christian hermits made it their own in the Middle Ages.
Externsteine contains a number of astronomical alignments and attracts Neopaganism and New Agers and me.