I just watched an amazing photorealistic CG movie showpiece called The Third & The Seventh. Definitely watch this full-screen and with the volume up.

I was completely floored by it.

Here's the artist's own info about it:

A FULL-CG animated piece that tries to illustrate architecture art
across a photographic point of view where main subjects are
already-built spaces. Sometimes in an abstract way. Sometimes
surreal.