Ripples Of Colour,

describes these kaleidoscopes of colour, 

 they are the work of Miami based artist Douglas Hoekzema, aka Hoxxoh,

 who uses spray cans of paint to turn a flat wall into 3D tunnels of colour, several of which he completed recently at POW! WOW! D.C.

 some of his work grows across buildings,  

for more of his stunning work, have a look here.