Heritage of Mercury. Almadén and Idrija - Credit: Wikimedia Commons
Heritage of Mercury. Almadén and Idrija is a joint UNESCO World Heritage Site in Almadén, Castile-La Mancha, Spain, and Idrija, Slovenia. The property encompasses two mercury mining sites. In Almadén mercury has been extracted since Antiquity, while in Idrija it was first found in 1490.Heritage of Mercury. Almadén and Idrija - UNESCO World Heritage Centre Read more on Wikipedia
Source: en.wikipedia.org