Mill remains.

The old mill that once powered this corner of Devon now stands as crumbling stone walls and moss-covered foundations scattered across a quiet stretch of countryside. What's left tells you everything about how people lived and worked here centuries ago - the wheel pit, fragments of millstones, the basic engineering that kept grain grinding. It's the sort of place that makes you stop and think rather than rush through.

You won't find crowds or visitor facilities. The remains sit in their natural state, which means you can wander freely and imagine the place at work, water rushing, dust in the air. History buffs will get the most from this - it's not a spectacle, it's a puzzle. Families with younger kids might lose interest quickly unless you're good at spinning stories about medieval life. Give yourself 30 minutes to an hour, depending on how much you want to poke around.

The nearest town is Plymouth, which sits about 5-10 minutes away depending on which mill you're visiting. Staying at Dartmoor Domes or Langstone Manor Holiday Park puts you within easy reach, and it makes sense to combine this with other walks in the area - there's proper countryside all around. Free to visit, no opening hours to worry about. Go when you've got decent light and the ground isn't sodden, and bring proper shoes.