[Swizec]

Future archeologists are going to have so much fun with these. They're not gonna say it's aliens, but it'll def have been aliens.

[noir_lord]

It would be kinda fun to do these crazy scale things and have no reason to do them with the intention that our distant ancestors will be as confused as hell but then I look around at the modern world and think they'll no doubt think that anyway.

[Swizec]

If you're into that kind of stuff, read Mark Lawrence's books. It's set in post-modern times where our civilization is known as The Builders. Complete with ghosts coming out of unintelligible machines and talking about how stupid everyone is these days.