Großsteingrab Heidenopfertisch, Megalithic tomb in Visbek, Germany

The Großsteingrab Heidenopfertisch is a megalithic tomb in the municipality of Visbek, near the Engelmannsbäke inn. It is oriented east-west without a stone enclosure. Two of the original three capstones remain; the largest, about 5 by 3 by 1.2 metres and roughly 50 tonnes, is the heaviest preserved capstone of any megalithic tomb in Oldenburg. The burial chamber measures about 10 by 2.5 metres.

Built between 3500 and 2800 BCE by the Funnel Beaker culture, the grave had passed through generations of the Zeller Engelmann family when the Grand Duchy of Oldenburg bought the site and monument in 1847 for 200 Reichstaler after lengthy negotiations, placing the Visbek landmark under monument protection.

The name Heidenopfertisch, "heathen offering table", dates from the 19th century and reflects later speculation about the monument, not a documented cult. The tomb lies near the Visbeker Bräutigam and the Visbeker Braut, and artists such as Johann Carl Wilhelm Aarland recorded it in the 19th century.

The site is easily reached via hiking routes 7 and 8 of the archaeological experience trail with parking nearby. The flat landscape makes driving comfortable, and the walk from the parking area to the monument itself is short and straightforward.

The capstone was originally about 7 by 3 metres; at least two pieces were blasted off in the early 19th century and used as building material. What remains is roughly 5 by 3 by 1.2 metres and, depending on the source, about 40 to 50 tonnes — the heaviest surviving capstone of any megalithic tomb in Oldenburg.