Øm Jættestue (Passage Grave) #1

Located between the villages of Lejre and Øm just south of Roskilde on the Danish island Zealand stands an impressive passage grave dating back to the Neolithic era. The grave was discovered in 1832 when two farmers, collecting potatoes, sat down on the mound, which was covered by a potato field and noticed the entrance. They investigated the entrance and discovered the grave.

Today the sight is visible and accessible to visitors. The stone that once covered the entrance now stands at the carpark and the grave is enterable. It is one of the best preserved in the whole country. Another, not in as good condition, passage grave lies not so far from it.

The site is a registered historical monument and protected.

The grave is thought to have been constructed between 3950 BC - 2801 BC.