Related: 26 years, 9 tons of limestone, and a whole lot of love went into this magical fairytale house The Armadillo Vault spans 16 meters (about 20 feet), yet some sections are only as thick as ...

Authorities say a construction worker died when a large chunk of limestone fell onto his head and chest at Indiana University’s Bloomington campus. Monroe County coroner Joani Shields says 35 ...

What's truly fascinating is that the markings on this limestone slab, carbon dated to 38,000 years old, strongly resemble other rock carvings from the same era scattered across France and Germany.