Culsh Earth House

The moment you spot the entrance to Culsh Earth House, you realise you're looking at something genuinely ancient - and genuinely odd. This is a souterrain, a subterranean stone passageway built by Iron Age people around 2,000 years ago, and it's still here, still intact, buried just outside Aboyne in Aberdeenshire. You descend into darkness, literally ducking through the narrow stone corridor that curves underground like a peculiar tunnel through time. The walls are precisely fitted - no mortar, just stone on stone - and the whole thing feels less like a museum piece and more like stumbling into someone's actual Iron Age basement.

Archaeologists still debate what these places were for. Defence? Storage? Ritual space? Standing down there, torch in hand, all three feel plausible. It's wonderfully atmospheric but genuinely claustrophobic - not the spot if you're nervous in tight spaces.

Access is free and straightforward, though there's minimal signposting. Allow twenty minutes maximum unless you're the type to spend an hour photographing stone joints. It's worth a detour if you're based at Tarland Camping & Caravanning Club Site or Aboyne Loch Caravan Park, both within easy reach. Pair it with a walk in the surrounding Deeside countryside - this bit of Scotland doesn't need much dressing up.

Go in daylight. The torchlight atmosphere is compelling, but you'll want to see the stonework properly. Kids find it exciting for about ten minutes, then the novelty wears off. History enthusiasts, though, will find it genuinely compelling.