St Adelwold's, Alvingham

The twin churches of St Adelwold and St Mary sit side by side in the village of Alvingham, near Louth, which is frankly extraordinary. You won't find many places where two medieval parish churches stand yards apart like this - it's the sort of thing that stops you mid-walk and makes you actually look up from your phone.

Both date back centuries, with St Adelwold the older of the pair. The stonework is proper atmospheric, especially if you catch it on a grey Lincolnshire afternoon when the light goes thin and the whole place feels genuinely remote. Inside, you'll find the usual features - medieval fonts, some decent carved details if you're into that sort of thing - but it's the sheer oddness of the arrangement that draws you here rather than any single showstopper.

It's free to visit, assuming the doors are unlocked (they often are in country churches, but check ahead). Budget twenty minutes if you're just having a look round, longer if you're the type to read every brass plaque. Families with restless kids might find it a bit sparse after ten minutes, but history enthusiasts will genuinely enjoy the peculiarity of the setup.

From nearby holiday parks like Stewton Stars Hideaway or Lakeside Park, this makes a decent half-hour detour on a country walk around the Louth area. It's the sort of spot that rewards curiosity rather than demanding it - worth a visit if you're in the neighbourhood, but not something to drive forty miles for on its own.