I made nine but most of them are in London (all but the Eye because I haven't been for years). I've also been to the two in Rome, Versailles (but not Paris) and, of course, the Sydney Opera House. So you beat me Ros. My daughter's done seven, possibly eight, and she's only twelve. Funnily enough she's been to several I haven't. In fact I've only been to the Opera House with her from this list.