You can probably find the whole post plus the great responses, by doing a search - maybe type "Chalk Art" into the dialogue box, and see if the piece comes up. There were some WILD replies!
These chalk designs appear to be 3 dimensional. They are SO REAL. But it's "chalk art!"
That reminds me of my trip to Scottland. Not only were there Bagpipers all over, but plenty of Chalk Artists. Just wonderfull art. I am not much for todays art since most is hard to deem as art, but most of the chalk artist are just so gifted.