28 Days Later was a pretty impressive film for me mainly for the way it managed to empty (or simulate) many parts of London (such as the ever busy area of Big Ben and Westminster Abbey).
I stumbled across this painted sign (above) all over pathways around East London and is promoting the upcoming sequel release, 28 Weeks Later. I don’t know if they had local council or city approval, but I like way this biohazard symbol is enigmatically painted all over the pavements. This one I caught outside Old Street station on the way to Hoxton Square.