The Headington Shark

A fibreglass shark erupts from a Victorian terraced house on the New High Street in Headington, just outside Oxford. It's been there since 1986, stuck mid-plunge through the roof tiles at a rather aggressive angle. You can't go inside, but that's almost beside the point - the real thrill is rounding the corner and seeing it suddenly appear, this absurd bit of public art that refuses to be ignored.

John Buckley installed it as a protest against nuclear weapons. Three decades later it's become Oxfordshire's most defiant landmark, and honestly, it works better as a surprise than as a planned destination. The shark sits about 25 feet up, so it's properly visible from street level. Photos take about five minutes, and locals don't seem fussed by tourists stopping for a look.

It's free, of course, and accessible any time you can walk past - there's no visitor centre or gatekeeping. The location itself is residential, so you're looking at a quick detour rather than a half-day outing. If you're staying at Common Leys Farm just down the road, it's the kind of thing to tick off on a morning potter into Headington before heading elsewhere in Oxford.

Kids either find it brilliant or completely underwhelming, depending on their tolerance for weird public sculpture. Most adults get the joke. Whether it's worth the trip on its own is debatable - but combined with proper time in Oxford, it's a properly odd addition to any visit.