April 30, 2012 Geometric Waterfall
 

http://cellar.org/2012/geometric waterfall.jpg

A "geometric" basalt waterfall.

Photo location: Iceland

Photo by Lorenzo Cagol

via National Geographic

It's like an upside down Giant's Causeway.

And look! Someone left cheezburgers for you and Dana! :)

Haggis!

As you wish...

Attachment 38547

That's exactly what it is. There are several locations around the world with this kind of columner basalt formation, Giant's Causeway is one of them. I've been to one close(ish) to where I live: http://www.flickr.com/photos/darrenjan/3273101003/

Not really chrystals, but contracted and shrunken lava, sort of like the bottom of a dried pond or lake.
In the Sierra Nevadas there is the Devil's Postpile where you can see the formation as columns from the side or pavers from the top.
The waterfall looks like an Inky Cap Mushroom.

Not trying to get into a VIC vs NSW competition here, Wombat, but we have one, too:
Organ Pipes National Park
It's quite close to Melbourne, where I used to live.

We have a famous one too.
Attachment 38566

Geographical features made out of mashipots do not count. Sorry.

Ha! I went to google images see a picture of what a mashipot is, and it took me to one of your posts.

Definitely a Sundaeism

Mashed potatoes?

We have some of this rock formation near us, too (and thanks for the Haggis, Monster!)