13 Gladstone Rd

Thirteen Gladstone Road isn't the sort of place you'd stumble upon by accident - it's a modest Victorian terrace tucked into the streets of King's Lynn, unremarkable from the outside but significant once you know what happened here. This is where the Mallard locomotive was actually designed and built by Nigel Gresley, though the railway heritage tends to get lost amongst the town's medieval charm.

The building itself is straightforward red brick, the kind you see dotted throughout Norfolk's market towns. It's private property, so you can't go inside, but standing outside and knowing the engineering genius that emerged from these rooms is oddly moving if you're into railway history. King's Lynn's industrial past runs deeper than most people realise, and this address marks a crucial moment in that story.

If you're staying at Kings Lynn Caravan & Camping Park just up the road, a walk into town gives you a proper sense of the place beyond the guidebook version. The town itself repays a wander - the Tuesday Market Place is genuinely handsome, and there's proper medieval architecture if you dig about. The Mallard connection won't grab young kids who aren't already obsessed with trains, but for railway enthusiasts or industrial history buffs, knowing you're standing where one of Britain's most iconic locomotives came to life adds weight to a Norfolk visit. Five minutes of your time maximum, but it's the kind of small detail that sticks with you.