Turda Salt Mine
The Salt Mine is mentioned in official documents from the middle of the 13th century, when the mine was offered to the Transylvanian Catholic Church leaders. The salt was extracted in huge pieces, which were then cut by specialist workers. The mines were lit by candles and tallow rush lights; explosives were never used for exploitation nor mechanical equipment used for cutting the salt.
The mine boasts impressive galleries, long tunnels and mining system, great acoustics and very healthy microclimate. The microclimate in the mine is characterised by yearly variations of temperature between 11 – 12° C; the average humidity level inside is 80% and the air pressure is between 747-752 mm Hg. The lack of pathogen bacterium and a moderate air ionisation is beneficial to people with breathing disorders.