From the Department of Awesome Natural Wonders comes this
impressive geological formation - an enormous rock perfectly
balanced atop a smooth mound. Located deep inside the forests of
Finland, the balancing rock is called Kummakivi:  "There is
still no scientific explanation for how the rock, whose given
name translates as ‘strange rock’ in Finnish, has wound up in
such a perplexing position."  However it happened, it’s a pretty
awesome sight. But we don’t recommend standing under it for too
long.  [via My Modern Metropolis]