Just a quick battlemap for a one-shot I'm running Saturday -- the Well of Lost Souls:

Click image for larger version. 

Name:	well-of-lost-souls.jpg 
Views:	1145 
Size:	1.14 MB 
ID:	73239

Textures and objects from cgtextures, deviantart, and the dundjinni forums. Production time: 2 hours. Not 100% happy with the pillars, but they'll do.

In my game, those crystals are tied to the water, and disabling the Bad Stuff that the well does requires smashing them.