Detailed text transcripts for TV channel - DW - 20181114:09:22:00
Former mines. many of the mine tunnels are now flooded some are being expanded in order to enable the extraction of contaminated water or improved ventilation. the team here is still uses the old drills from the east german era. it's on top of an underground network comprising four thousand two hundred kilometers of tunnels some reaching depths of almost two thousand meters. insufficent you know a couple we have a total of eighteen locals it's like having a high rise building with multiple stories. and each story there's a huge network of there's all this like that's. and there's a huge amount...