Costesti in Romania, very amazing
http://www.youtube.com/watch?v=pqAnLzwjqlg
I don't see anything growing or moving, but they're interesting rocks. Looks like remains of ancient vulcanic activity or a huge lightning bolt having melted stone arteries inside the earth, once, now coming to the surface due to erosion.
This place is protected by Unesco.
I guess moving or growing takes a very long time.
Could be interesting to make a time lapse through years.
If that video is true thats pretty great. Maybe just a clever way to get tourists to by rocks though. Never heard of anything like it.