Small group approach with carefully planned time, where experienced local tour operator’s chauffeur guide will collect you at designated location for an informative hourly ride to inner part of Slovenia for your UNESCO experience. The history of mining in Idrija dates back to the 15th century when, according to a legend, a bucket maker working in a local spring spotted a small amount of liquid mercury. That happened in 1492, the year that Columbus set sail for the Americas. Only the Almadén mercury mine in Spain was bigger. Both towns were so famous that their names were used in North America for the mining towns of New Idria and New Almadén (both in California). Visitors decent into the mine with professional guide through Anthony's Shaft, dug back in 1500. They explore the underground world of the mine where they find hidden pockets of cinnabar ore and droplets of mercury, learn about the method of mining mercury, are introduced to life-size mannequins of workers over the ages and see the mid-18th century unique underground chapel Chapel of the Holy Trinity.