The illegal mining and quarrying activities in the vicinity of the Agra based world famous Fatehpur Sikri might put its historical buildings, including Buland Darwaza in danger. The Uttar Pradesh
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/illegal-mining-may-endanger-fatehpur-sikri-monuments
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/statesman-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining