The tourist route in Krzemionki is about 1.5 km long and presents original Neolithic mine workings, mining waste dumps, and shaft depressions. All these elements create a unique industrial landscape from 5,000 years ago. The most interesting part of the route is its underground section.

Mieczysław Radwan proposed the creation of an archaeological reserve and research facility in Krzemionki already in 1926. He stated that properly organized prehistoric mines should become the target of domestic and foreign research. S. Krukowski, in his work “Krzemionki opatowskie” (1939), recommended the construction of not only a research facility but also an appropriate tourist base. After World War II, the activities of engineer-architect Tadeusz Żurowski contributed to the dissemination of knowledge about Krzemionki. Mining works carried out under his supervision made some of the shafts in the mining field accessible to visitors. Even then, small groups of tourists equipped with mining equipment and clothing visited the underground mines, moving similarly to Neolithic miners. This method of sightseeing was arduous, tiring, and dangerous. In the 1960s, new concepts of tourist development of the facility and construction of an underground sightseeing route appeared. The idea for the tourist tunnel route was conceived by J. T. Bąbel, who partly modelled it on a similar route established in the Neolithic flint mine in Rijckholt-St. Geertruid in the Netherlands. The route was to be created by marking out a tunnel across the mining field and deepening the floors of the Neolithic workings. The history of the underground route in Krzemionki dates back to the late 1950s, when tourists began to visit the partially cleared underground mines in the area of shafts marked with numbers 1, 2, and 3. Archaeological research conducted at the turn of the 1970s and 1980s enabled the first section of the route to be constructed in the area of these shafts (the so-called tourist route no. 1 opened in 1985). A few years later, the excavation of the tourist gallery around the wonderfully preserved chamber mine no. 7/610 (the so-called tourist route no. 2) was completed. The last stage of the work was the construction of a tunnel connecting routes no. 1 and 2 in 2001-2004. Part of the newest section runs through the excavations of Neolithic chamber and pillar mines, while another part was excavated in solid limestone rock, where one can admire a natural flint-bearing bed.
The current underground route is almost 500 m long and, at its deepest point, reaches 11.5 m below ground level. It allows you to see both the excellently preserved workings of prehistoric striped flint mines and to learn about the geological structure of the region. The underground tourist route in Krzemionki is the only facility of this type in the world open to the public.