The dry weather has brought out some amazing parch marks at Stonehenge.
I was most excited by the appearance of four circular marks between Stone 16 and 21. These are where the four missing stones should be, so is this a hint that actually there are four holes there? There is a debate as to whether Stonehenge was ever finished and if stones 17 and 18 were ever actually erected. I believe that geo-phys results are inconclusive in finding the stoneholes so this is interesting and supports the argument that it was.
More on the non-completion theory here
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Around the monument there are also parch or crop marks that seem to correspond to the Z and Y holes.