Wippersteine

They have gone down in Hessian history as an archaeological site and nationally as a historical meeting place.
The stone formation no longer protrudes from the ground as impressively as it did in ancient times, as the earth's humus layer has risen by 1.5 - 2 m over time and covers the stone feet.
Archaeologists found very old traces of human blood on the largest stone. They indicate that the seesaw stones were used as a pre-Christian sacrificial place.From the beginning of the 19th century, the Schwalm Democrats used the Wippchensteine as a meeting place. The emerging political resistance against Napoleon Bonaparte was organized here. Citizens came together for the first time in 1812 against French foreign rule at the Wippchensteine. After that, the Wippchensteine were a secret meeting place against the decisions of the Congress of Vienna, and then in the period from 1830 to 1848 also for democratic meetings with a revolutionary character.
Source:
de.wikipedia.org/wiki/Wippchensteine

A mystical-seeming place on the edge of the forest between Merzhausen and Holzburg. Based on archaeological investigations, it is assumed that the Wippersteine are an ancient sacrificial site.