Trinity Hospital

The red-brick facade of Trinity Hospital rises quietly on the edge of Retford, a 17th-century almshouse that's easy to miss if you're not looking for it. Built in 1632, it's one of those places that rewards a bit of curiosity - a working almshouse still occupied by residents today, which means access is limited and you'll need to respect the privacy of those living there. What you can appreciate from outside, though, is the architecture itself: a handsome courtyard arrangement that speaks to a different era of charitable giving, when local benefactors built homes for the poor rather than just handing out coins.

It's really a spot for architecture enthusiasts and local history buffs rather than something the kids will find riveting. You're looking at perhaps 20 minutes pottering about the exterior and reading any information boards if they're up. The building sits close enough to Retford town centre that you could combine it with a proper walk around town, checking out the Georgian streetscapes and independent shops.

If you're staying at one of the nearby caravan parks - Hallcroft Fishery is practically on your doorstep, while Olive Tree and Little Oak are a short drive away - it makes for a gentle morning detour rather than a dedicated trip. Clumber Park, just six miles south, offers far more substantial grounds for a full day out, so slot Trinity Hospital in as a quick cultural breather before heading there. Ring ahead or check locally first though, as opening times aren't always obvious and you'll want to confirm what's actually accessible.