mind-bending

US /ˈmaɪndˌbɛndɪŋ/
UK /ˈmaɪndˌbɛndɪŋ/
"mind-bending" picture
1.

mentally challenging or confusing; difficult to comprehend or imagine

:
The movie had a mind-bending plot that left everyone thinking.
Solving the complex puzzle was a truly mind-bending experience.