This has to be the best signage I have seen for a long time. It is a way-finding system developed by designer, Axel Peemoeller
for Melbourne Carpark, 'Eureka Tower
The system works by having giant letters painted on the walls and floor, that appear distorted close up, but when seen from a distance, as you are driving through the carpark, they are perfectly legible. The perspective is carefully calculated to produce the largest, most legible sign from the correct angle.
It reminded me of pavement drawings by Julian Beever
I saw a while ago which use perspective and distance in the same way, but in his case to create 3D illusions.Eureka Tower images copyright Axel Peemoeller
Pavement art images copyright Julian Beever