Waldviertel Pyramid, Stone monument in Waldviertel, Austria

The Waldviertel Pyramid is a stone monument near Groß Gerungs that rises approximately 7 meters high with a diameter of roughly 14 meters at its base. The structure features four circular layers of natural stones, with wall remnants nearby suggesting a larger original complex.

The structure was placed under official monument protection in 2000 by the Bundesdenkmalamt, not 2001. Its age is unknown; a Germanic shrine or prehistoric tomb is considered unlikely because the area shows no prehistoric or early settlement. A construction before the 19th century is plausible, possibly linked to the Freemason lodge founded in 1747 by Leopold Christoph von Schallenberg at Rosenau Castle.

The German Wikipedia links the stepped cone to the Freemason lodge founded in 1747 by Leopold Christoph von Schallenberg at Rosenau Castle, suggesting a construction date before the 19th century. The masonry consists of loosely layered boulders, and a wooden climbing structure must once have existed because of the unstable stone layers.

The monument stands in the forest between Zwettl and Groß Gerungs and is accessible to visitors. It is worth exploring the surrounding area, as you can find remnants of walls from the earlier complex.

The stepped cone's loose stone layers are so unstable that a wooden climbing structure must once have existed to reach the top. The Energy Domes worn by the rock band Devo resemble the Waldviertel Pyramid.