Martyrs' Memorial

Standing in Broad Street, you can't miss this Victorian Gothic monument rising up between the colleges. It's a memorial to three Protestant bishops - Latimer, Ridley, and Cranmer - burned at the stake in Oxford during Mary I's reign in the 1550s. The spire is genuinely striking, all pointed arches and stone detail, and it marks the exact spot where the executions happened, which gives the whole thing proper weight.

You can walk around it freely - there's no charge, no opening hours to worry about. Most people spend ten minutes photographing it, reading the plaques, then moving on to the next college. History buffs will want longer to absorb the religious and political drama of Tudor England; younger kids might find it a bit abstract unless you're really good at explaining why people cared so much about theology in the 1550s.

What makes it work is the location. You're right in the heart of Oxford's academic quarter, so the memorial slots perfectly into a college walk - combine it with a punt down the Cherwell or a proper look around the Bodleian. It's walkable from any of the nearby parks: Cedar Hollow Oxford and The Oaks are both under three miles away, Valley Farm Campsite is 3.5 miles, and the others are five or less. The whole city centre is compact enough that you won't need transport once you're parked up.

Worth stopping for if you're already in Oxford, but not worth a special trip on its own.