Blue iceberg(en.wikipedia.org)
74 points by thunderbong | 11 comments
First screen, captured .
Looks similar
Tunnel of Eupalinos(en.wikipedia.org)
173 points by Thevet | 27 comments
Darvaza Gas Crater(en.wikipedia.org)
102 points by thunderbong | 22 comments
Artificio de Juanelo(en.wikipedia.org)
86 points by benbreen | 10 comments
Archimedes Palimpsest(en.wikipedia.org)
80 points by YeGoblynQueenne | 8 comments
Geohash(en.wikipedia.org)
27 points by stefankuehnel | 12 comments