Sponge spicule(en.wikipedia.org)
39 points by perihelions | 4 comments
First screen, captured .
Looks similar
Blue iceberg(en.wikipedia.org)
74 points by thunderbong | 11 comments
Ellison's Cave(en.wikipedia.org)
30 points by dataminer | 19 comments
Snottite(en.wikipedia.org)
43 points by hkopp | 6 comments
Octopolis and Octlantis(en.wikipedia.org)
19 points by eatonphil | 6 comments
Artificio de Juanelo(en.wikipedia.org)
86 points by benbreen | 10 comments