Idrija is a town, which is situated in a basin in the middle of Idrija Hills. It lies on the area, where are connecting the Karst and the prealpine world. Idrija is the municipal centre and unites the important cultural, administrative, educational, tourist and other public functions. Idrija is the oldest mining town in Slovenia.
The early beginnings are connected with the discovery of mercury, growth, development and extent of the city were associated with the growth of the underground mine. At the end of the 15th century was made a mining settlement that got the market rights in the 17th century. Among the most important urban centres in Slovenia was Idrija ranked in the 18th century. Until the First World War was Idrija the second largest city in Carniola.
In the past was famous for its technological achievements, intensive contacts with the European cities, developed countries and to attracting many top scientists. In Idrija we can visit many cultural, natural, architectural and engineering attractions. The most important are Castle Gewerkenegg with museum, Kamst, Klavze, the walking path by Rake, Antony's shaft, Miner's House, the oldest town Church of the Holy Trinity, Lance School Idrija, Regional park Zgornja Idrija with the lake called Divje jezero. The lake belongs among the famous natural attractions of the Slovenian heritage. Idrija is also famous for delicious food, called idrijski zlikrofi.