Real, or an illusion?
This is a perfectly flat area that has been transformed, by sidewalk artist Edgar Mueller,
into a cavernous pit. Amazing depth perception in this one.
This is a perfectly flat area that has been transformed, by sidewalk artist Edgar Mueller,
into a cavernous pit. Amazing depth perception in this one.
![](http://public.blu.livefilestore.com/y1p6SaPsOvyqU-j2r9Zei8zet5PZtXhuLTzgoNUCektSqYrshR9zv2XhskIzKnFaxkJRePsAoZ3K0olEwLmVFiw-w/sidewalk%20art%20%231.jpg)
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