Rokkestenen ("The Rocking Stone") at NaturBornholm, Aakirkeby, on the island of Bornholm, Denmark
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/52215326@N00">Ole Andersen</a>
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/palnatoke/2710097838/">HPIM1654</a>