What is there to do in Cardiff?

[almostwitty]

A friend of mine is planning a visit to Cardiff, and asked me what there was to do there. And despite living there for five years, I couldn't think of anything in Cardiff beyond the Castle, the Wales Millennium Centre, and Cardiff Bay (which is just a glorified upper-class entertainment mall) that was great and unique to Cardiff. So all I could suggest was the BBC Doctor Who Locations Guide (I made that!).

Have you got any suggestions?

While we're on the subject, see what happens when a Chinese chef and a Welsh chef decide to make beautiful food together. Although I'm wondering what they CAN come up with...