
Small town Soledar in Donetsk region is situated on the place of shallow bay of ancient Permian sea which existed there 250 millions years ago. After the sea dried out, here appeared one of the purest salt deposit in the world and the biggest one in Europe. In spite of more than 100 years of underground working, resulted in more than 125 miles of mines, these salt field resources are enough for 2 thousand years more.
While tourists are attracted not by functioning mines, but exhaust one which is added to the UNESCO list of world culture heritage. Miners who worked in it turned the empty mines into magnificent temples by creating sculptures, pictures, chapels and grottos from salt blocks. Everything here is made of salt: walls, ceiling, floor, figures and trees.

Near the tourist route there is a speleo-sanitarium "Salty Symphony" where the following diseases are successfully cured: bronchial asthma, asthmatoid bronchitis, obstructive bronchitis, chronic pneumonia, rhinoallergosis, atopic dermatitis, some forms of psoriasis, weak immunity, thyroid diseases. Patients' sense of well-being is influenced by the following factors: atmospheric pressure 772 mm Hg (millimeters mercury column), air humidity 60%, temperature 14-16 °С, as well as air itself is filled with salt pieces with size of 1-5 micron and concentration of 15 mg in 1 cu m. The treatment in the microclimate of salt mine is one of the most effective because 70-85% adults and 85-95% children recover there according to statistics.
