Celje

There are many fantastic holiday destinations throughout the world, but one special undiscovered location is Slovenia. It has many unique sites to see, here are 5 of the secret must see sites you should visit:

1. Postojna Caves

These are a network of interconnecting passages over 20 kilometres in length. Professional guides take visitors into the largest cave the ?classic karst? and is the most visited cave within Europe. In 1872 electricity lines were laid and powered trains and lights allowed visitors to view the amazing rock formations inside. Current tours last 90 minutes and they have translated information in …