Cropped version - <a href="https://en.wikipedia.org/wiki/St_Catherine%27s_Chapel,_Abbotsbury" class="extiw" title="en:St Catherine's Chapel, Abbotsbury">St Catherine's Chapel, Abbotsbury</a> in Dorset, UK.  It was probably built in the first half of the 15th century.
<a href="//commons.wikimedia.org/wiki/User:Herbythyme" title="User:Herbythyme">Herbythyme</a>
<span class="int-own-work" lang="en">Own work</span>