megalith

Megalith

From Greek mega = large and lith = stone. Can be 1. a single stone or 2. a monument such as a tomb made of several large stones.
Source Wikipedia

The Stone Age in a Space Cruiser

Wulf Hein (DE)
The Jeongok Prehistory Museum in South Korea. Like a stranded UFO the building is settled between the hills at a river, the sun reflects off the metal outer skin. Standing in the entrance area, you feel as though you are in a film by Stanley Kubrick, but as you pass through into the structure it is a surprise to find yourself outside in the middle of the African savannah...

Hunebedcentrum (NL)

Member of EXARC
Yes

Lying on the Hondsrug in Borger, in the North of the Netherlands, the Hunebedcentrum takes you back to prehistoric times and shows you the lives of the first farmers in Drenthe. They constructed impressive monumental tombs and the remains of 54 of them can still be seen, the largest one standing right next to the centre.

Lying on the Hondsrug in Borger, in the North of the Netherlands, the Hunebedcentrum takes you back to prehistoric times and shows you the lives of the first farmers in Drenthe. They constructed impressive monumental tombs and the remains of 54 of them can still be seen...