pouët.net

Earth athmosphere from orbit:

Looks like one of Sensenstahl's 256b's.

This guy has made serveral multi-dimensional demo'ish objects on a 3D printer.

I think Marks & Spencer's (a department store chain in the UK) series of ads / commercials, "Adventures In..." are quite demo'ish. I love them and so it seems do other people as they've been running these for a few years now and have made about 20 already. They're short and sweet (well they are mostly about food) and set to the music of Rather Be by Clean Bandit.
https://www.youtube.com/user/marksandspencertv/search?query=adventures

Demoish wireframe.

Anything with more apparent symmetry. Enhanced by high contrast gradients.

Www.reddit.com/symmetry

british money under UV (only a concept though)

@cupe: Looks great.

Demo'ish rave poster.

Deep-sea demoscene:


It's deep sea coral, or a spong, or a bryozoan. Or a circa-1998 64k. Your choice.


Jesus christ.


Now they're just trolling us.

What is that first one you posted? Silent room?

Looks like a 'dead room' indeed, and a serious one too

I'd love to know where it is & who built it. I'm trying to wrap my mind around what the megaphone on the pillar and the whirly-eyeball-thing at the top could possibly be for.

Looks like HF antenna shizzle to me.

Yep. https://m.reddit.com/r/RTLSDR/comments/4id432/antenna_test_room_how_is_this_legit/?ref=readnext

Lilypads are metal