Großsteingrab Bülzenbett, Neolithic dolmen in Geestland, Germany.

The Bülzenbett is a Neolithic megalithic tomb of the Funnel Beaker culture in Sievern, near Geestland. Its trapezoidal enclosure, about 35 m long, keeps 33 of its original 55 stones, several re-erected in 1970. In the western part lies the 8 × 4.7 m chamber, roofed by three capstones; the middle one was blown apart between 1604 and 1755 and still shows wedge holes.

The Bülzenbett was built between 3500 and 2800 BC by the Neolithic Funnel Beaker Culture (TBK). It was depicted as early as 1605 by Wilhelm Dilich, the oldest known illustration of a megalithic tomb in German literature. In the mid-19th century a small stone cist with a flint axe and dagger was found inside the enclosure, and artefacts kept at Museum Burg Bederkesa show the site was reused in the Bell Beaker period.

This dolmen served as a shared burial place where local communities laid their dead to rest and performed important rituals. The way the stones are arranged shows how much this location mattered to the people who built it.

The site is accessible to visitors via marked pathways and stands in open terrain offering clear views of the stone structure. Information panels on location explain the layout and help visitors understand the different parts of the construction.

In the mid-19th century a small stone cist was found inside the enclosure, holding a flint axe and a flint dagger. Artefacts kept at Museum Burg Bederkesa show the site was also revisited in the Bell Beaker period, after its builders of the Funnel Beaker culture.