Lonely Planet review
Situated near the Altaussee about 6km north of Bad Aussee, this working salt mine was the secret hiding place for art treasures stolen by the Nazis during WWII. All tours are bilingual in German and English. Bus 955 runs a few times each day to the nearby stop 'Altaussee Scheiben' from the post office (€2, 10 minutes). Bike is a better option as the bus is infrequent.
Tours include the treasure chambers, an underground lake, and a chapel dedicated to St Barbara, the patron saint of miners, that's made of blocks of salt.