Los Angeles-based artist Samara Golden channeled her inner M.C. Escher for this topsy-turvey art installation titled The Flat Side of the Knife, as displayed at MoMA/PS1. For the display, Golden converted a two-story space with common household things like couches, beds, staircases, tables and lamps. The mirrored floor finishes the optical illusion reminiscent of Escher's mind-bending 1953 artwork Relativity.
And here's Relativity by M.C. Escher for comparison: