Borehole Gallery
0lai
fandesexplorations
softspokenandopenminded
zobiez
crestas-blog
architectureofdoom:Kola superdeep* borehole, Pechengsky District, Russia. * 12,262 metres deep.
Kola Superdeep boreholeIt is quite hard to imagine that under this metal cap is actually the world d
Prev
Next