⚒️ Heritage of Mercury. Almadén and Idrija
Royal Forced Labour Gaol — UNESCO World Heritage Site
📋 Fast Facts
- Inscribed by UNESCO in 2012 under criteria ii and iv as part of a serial transnational property
- Located in Almadén, Spain (Castilla La Mancha), coordinates 38.77181, -4.83417
- Built in 1754 to house forced labourers, prisoners and convicts sentenced to work in mercury mines
- One of multiple component sites within the Heritage of Mercury serial property linking Almadén (Spain) and Idrija (Slovenia)
The Royal Forced Labour Gaol is a component site of the UNESCO-inscribed Heritage of Mercury. Almadén and Idrija, a serial transnational property recognised for its significance in mercury mining history. Located in Almadén, Spain, this small structure (0.11 hectares) stands as archaeological and architectural evidence of the penal labour system that underpinned mercury extraction. Though modest in physical scale, it represents a critical dimension of the mining operation: the social and labour ...