Blaze Study/Movement in Squares by Bridget Riley

Walking down a Winchester street, you'll suddenly stop dead. Bridget Riley's Blaze Study and Movement in Squares doesn't whisper - it hits you. These bollards are public art installations that do what Riley's work has always done: make your eyes move, follow patterns that seem to shift even when you're standing perfectly still. They're positioned right in the heart of Winchester, so you can't miss them, and you genuinely won't want to.

Riley's optical experiments have been making people squint since the 1960s, and this work proves she's still got it. The geometric precision is almost uncomfortable to look at for more than a few seconds - which is precisely the point. It's free, it's right there on the street, and it takes about ten minutes to properly absorb unless you're the type who gets properly lost in visual patterns, in which case you might camp out for longer.

Families with older kids will find it interesting; younger ones might get restless. History buffs and art types will absolutely get the appeal. It works brilliantly as part of a Winchester walking tour - tie it in with the cathedral and high street shops. If you're staying at Holden Farm Camping just five miles out, or one of the other sites nearby, you're only twenty minutes from this. Worth the short trip, especially if you're already exploring the city.