Hidden beneath the Giza Plateau, the Osiris Shaft remains one of Egypt’s most unsettling and mysterious sites. A 100-foot vertical descent into solid limestone leads to multiple chambers containing ...

Less than 10 miles south of Interstate 80 east of Evanston is a cluster of 30-foot limestone beehive-looking things. Built in ...

The topmost of the two images featured in the post depicts a digital reconstruction of a "white, polished limestone" structure with a "pure gold peak," according to the caption. The bottom image ...

The fine powder remained behind. Passchier also found very similar structures during field work in Oman and in Saudi Arabia -- in Oman in limestone, while in the Saudi Arabian desert they were in ...