Idrija is a town located in the south west direction from Ljubljana. Idrija is the oldest mining town in Slovenia with many preserved buildings. The early beginnings are connected with the discovery of mercury, growth, development and extent of the city were directly associated with the growth of the mine. At the end of the 15th century was made a mining settlement that got the market rights in the 17th century. Idrija was ranked among the most important urban centres in Slovenia in the 18th century. Idrija was the second largest city in Carniola until the First World War. 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 natural, cultural, 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 (Wild Lake). The lake belongs among the famous natural attractions of the Slovenian heritage. Idrija is also famous for delicious food, called Idrijski zlikrofi.