The railway bridge at Camden Lock has had the words "Camden Town" painted on
it, forwards and backwards. I don't really approve, because writing words on
bridges is a standard way of advertising stations, and this is some
difference from Camden Town station. But anyway, the forwards text is only
visible when approaching via the two way road from Chalk Farm, whereas the
backwards text is only visible from Castlehaven Road, which is one-way away
from the bridge... so it reads correctly in your rear-view mirror as you're
driving away.