This looks fun: http://www.cardiffdesignfestival.org/events/type-hunt

Meet Design festival HQ, Morgan Arcade 12:00 Sunday 6 Oct for TYPE HUNT:

A scavenger hunt exploring Cardiff’s rich typographic histories. You can join in as an individual, as a pair or in a group, on foot, on your bike or any other mode of transport.  It’s a half-day of exploration and detective work.  Organised by Olwen Moseley / CSAD Graphic Communication.

Here’s a recent find from deepest Crockherbtown, the ancient middle of Cardiff.