Low-Cost Direction Lines

The Doctor: «Which is the quickest way out of here?»
[Each of the women at the fountain point in different directions.]
The Doctor: «Yes. Well, That’s democracy for you. Come on.»
Doctor Who – Castrovalva

I was passing the fab lab on the ground floor a while ago, when I noticed how they handled providing visitors with directions:

There’s none of that indoor navigation app nonsense, or a digital visitor system, just lines in different colors on the wall that lead the way to where you want to go.

Beautiful, efficient and very well done.