Jaskyne
16. 8. 2012
http://www.ssj.sk/jaskyne/spristupnene/dobsinska-ladova/?lang=en/
Werfen, Rakusko
It is the largest ice cave in the world extending more than 42km.
http://en.wikipedia.org/wiki/Eisriesenwelt
http://www.amusingplanet.com/2012/04/eisriesenweltthe-worlds-largest-ice.html
http://www.gadling.com/2007/08/10/world-s-largest-ice-caves/
SALZWELTEN, AUSTRIA
http://www.austria.info/us/austria-unique-like-you/salzwelten-hallein-1471615.html