https://europeexplored.com/2012/11/26/postojna-cave-a-cave-of-superlatives-and-a-long-standing-history-of-tourism-slovenia/postojna-cave-slovenia-3/ Travel through the most beautiful places in Europe Wed, 07 Aug 2013 08:07:34 +0000 hourly 1 https://wordpress.org/?v=3.6