Podziemne miasta i fortyfikacje

Evidence: 59 • authority: 72

The Wieliczka Salt Mine (Polish: Kopalnia soli Wieliczka) is a salt mine in the town of Wieliczka, near Kraków in southern Poland. From Neolithic times, sodium chloride (table salt) was produced there from the upwelling brine. The Wieliczka salt mine, excavated from the 13th century, produced table salt continuously until 1996, as one of the world's oldest operating salt mines. Throughout its history, the royal salt mine was operated by the Żupy Krakowskie (Kraków Salt Mines) company. Due to falling salt prices and mine flooding, commercial salt mining was discontinued in 1996. The Wieliczka Salt Mine is now an official Polish Historic Monument (Pomnik Historii) and a UNESCO World Heritage…

Evidence: 59 • authority: 72

The Salt Cathedral of Zipaquirá (Spanish: Catedral de Sal de Zipaquirá) is an underground Roman Catholic church built within the tunnels of a salt mine 200 metres (660 ft) underground in a halite mountain near the city of Zipaquirá, in Cundinamarca, Colombia. It is a tourist destination and place of pilgrimage in the country. The temple at the bottom has three sections, representing the birth, life, and death of Jesus. The icons, ornaments and architectural details are hand carved in the halite rock. Some marble sculptures are included. The cathedral is considered one of the most notable achievements of Colombian architecture, being described as a "Jewel of Modern Architecture". The cathedr…

Evidence: 47 • authority: 72

The United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage Sites are places of importance to cultural or natural heritage as described in the UNESCO World Heritage Convention, established in 1972. Cultural heritage consists of monuments (such as architectural works, monumental sculptures, or inscriptions), groups of buildings, and sites (including archaeological sites). Natural heritage consists of natural features (physical and biological formations), geological and physiographical formations (including habitats of threatened species of animals and plants), and natural sites which are important from the point of view of science, conservation, or natural be…

Evidence: 42 • authority: 80

The Miners' Route - a new underground route in the "Wieliczka" Salt Mine. -

Evidence: 42 • authority: 80

Underground injection technology for protection of the Wieliczka Salt Mine in Poland