Darvaza Gas Crater(en.wikipedia.org)

102 points by thunderbong 3 years ago | 22 comments

Ellison's Cave(en.wikipedia.org)

30 points by dataminer 3 years ago | 19 comments

Qanat(en.wikipedia.org)

394 points by vinnyglennon 3 years ago | 84 comments

Wikipedia article on qanats, underground channel systems originating in ancient Iran that transport water from aquifers to the surface in arid regions.

Yakhchāl(en.wikipedia.org)

75 points by thunderbong 2 years ago | 4 comments

Archimedes Palimpsest(en.wikipedia.org)

80 points by YeGoblynQueenne 3 years ago | 8 comments

Iceland Spar(en.wikipedia.org)

19 points by Thevet 1 year ago | 2 comments