Curated OER
Unesco: Slovenia: Skocjan Caves
This exceptional system of limestone caves comprises collapsed dolines, some 6 km of underground passages with a total depth of more than 200 m, many waterfalls and one of the largest known underground chambers. The site, located in the...
Curated OER
Unesco: Slovenia: Heritage of Mercury. Almaden and Idrija
The property includes the mining sites of Almaden (Spain), where mercury (quicksilver) has been extracted since antiquity, and Idrija (Slovenia), where mercury was first found in AD1490. The Spanish property includes buildings relating...