casper
The Living Force
A Psychedelic Salt Mine in Yekaterinburg.These mines are huge and stretch many kilometres in width and length. Single tunnels can measure over four miles long.
link:
http://www.amusingplanet.com/2014/06/a-psychedelic-salt-mine-in-yekaterinburg.html
video:
https://youtu.be/ZFI3fFPTJ6E
link:
http://www.amusingplanet.com/2014/06/a-psychedelic-salt-mine-in-yekaterinburg.html
video:
https://youtu.be/ZFI3fFPTJ6E