site.btaUnderground Mining Museum Opens in Madan This Spring
![Underground Mining Museum Opens in Madan This Spring](/upload/1193805/mart07Kristalna.jpg?l=1000)
![Underground Mining Museum Opens in Madan This Spring](/upload/1193805/mart07Kristalna.jpg?l=1000&original=4d34bc4e0fd060ba171d2bf19f9ff2ca12cf0864)
An underground mining museum will be opened in the southern Bulgarian town of Madan in the spring.
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