BBC: Guatemala homes swallowed by hole

Daamn... one hell of a hole I dare say. Apparently the town's main sewage pipe had been ripped due to an obstruction, and the leaking sewage water eventually created this fricking huge cave, which then collapsed. Although I dare suspect that explanation - unless the ground is really, really soft in Guatemala, because that kind of geological features normally take hundreds or thousands of years to be created by flowing water.
Here are some pretty impressive photos.

I'd say that in freakyness scale this is almost on par with the Indonesian sludge volcano, just the scale is a little smaller.