trompe l’oiel.

‘trompe l’oiel’ = ‘tricks the eye’

One would think that these paintings are photos!

Pere Borrell del Caso, Public domain, via Wikimedia Commons

Cornelis Norbertus Gysbrechts, Public domain, via Wikimedia Commons

Evert Collier, Public domain, via Wikimedia Commons

(featured image: Samuel van Hoogstraten, Public domain, via Wikimedia Commons)