A geographically-themed thread in response to @profdanhicks brilliant #MuseumsUnlocked idea, today is Neolithic and Bronze sites of the UK.

Starting in the far southwest, this is Bant's Carn on St Mary's, Isles of Scilly, a "Scillonian" chambered tomb.

Staying on St Mary's, next up are two more Scillonian chambered tombs, Innisidgen Upper and Lower.

Surrounded by several other contemporary monuments, this is the "Great Tomb" on Porth Hellick Downs, excavated and restored in 1899.

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Final one on St Mary's, this chambered tomb is on Buzza Hill, overlooking Porthcressa. There were originally two tombs here, but the other was demolished when a windmill was built on its site.

There are many more Bronze Age and Neolithic sites on the Isles of Scilly, but I'm heading the mainland now, to the cliffs near St Just.

This is Ballowall Barrow or Carn Gluze, a Neolithic entrance grave with a larger Bronze Age cairn built over it. Looking towards Land's End.

Going to have to be very selective in West Penwith, so our first #stonecircle is at Tregeseal, looking towards Carn Kenidjeck (the "Hooting Carn"). The first of many maidens-turned-to-stone-for-dancing circles.

A quick stop off at the less well known Tregeseal holed stones, an unusual #BronzeAge site of standing stones pierced with holes.

Next up, across the Penwith Moors is Chun Quoit, a wonderful #Neolithic chambered tomb. There was originally a circular mound around the chamber.

We head further west to the famous megalithic 'O' of Men-an-Tol. Now recognised as being part of a stone circle, the stone is famed for healing qualities.

Uphill from Men-an-Tol on a long ridge with fabulous views is my favourite #stonecircle, Nine Maidens of Boskednan.

Much less well known, back down the hill is the beautifully kerbed Bosiliack chambered cairn.

And then we're back to another "show site", the famous Lanyon Quoit. Much restored after the capstone collapsed and some of the supporting orthostats broke, it's still impressive. Unlike the circular Chun Quoit, this monument was covered in a long mound.

Heading off the moors into the farmland in the south of West Penwith, we come to the perfect chambered tomb at Brane.

Next, secluded in a circular field is the wonderful Boscawen-Un stone circle, with its unusual central pillar and quartz stone.

Passing through the lovely village of St Buryan we come to one of the easiest to visit chambered tombs in Cornwall at Tregiffian; so easy that they cut the road through it. The wonderful carved stone is actually a cast, the original is now in @Cornwall_Museum.

Our next site is probably the most famous #stonecircle in West Cornwall. Merry Maidens, another group of poor petrified Sabbath dancers.

Time for a quick visit to their equally petrified musicians, The Pipers, two of the most impressive #standingstones in Cornwall.

Going to finish our West Penwith trip with two more really fine #Neolithic chambered tombs. The first is Mulfra Quoit.

And our last West Penwith site today is the wondrous Zennor Quoit, a massive and impressive granite structure despite the fall of its capstone after a farmer's attempt to destroy it. It was saved by the local vicar.

Going to head east across the Hayle River now. Our next site was restored in 2014, after the chamber collapsed in the 1980s. This is Carwynnen Quoit, the only #Neolithic tomb of its type surviving in this part of Cornwall.

Only a couple of miles from Carwynnen but a couple of thousand years later in date is yet another Nine Maidens circle near Troon.

There are many standing stones in the area around Helston and the Lizard, but only one with a hole in it. This is the Tolvan near Gweek. It's in a back garden, so please ask before visiting!

Heading quickly upcountry now to the Looe valley, the next stop is the wondrous Duloe #stonecircle, made all of quartz.

On the edges of Bodmin Moor is the huge Trethevy Quoit, a close cousin to the Penwith examples.

Onto Bodmin Moor itself where there is a dizzying number of #BronzeAge sites.

This is Stannon, looking towards the steep profile of Roughtor.

Closer to Roughtor is Fernacre.

Heading a little way south is the enigmatic King Arthur's Hall, a rectangular embanked site with an internal arrangement of upright stones.

There are several fine stone circles in this part of the moor, the best known is probably the Trippet Stones.

Intervisible with the Trippet stones is the older Stripple Stones, a #Neolithic henge with a stone circle inside. Some of stones were recently re-erected.

Heading to the northeastern edge of the Moor, it's another Nine Stones, the favourite Cornish number for its circles. This one is near Altarnun.

Almost at the end of Cornish #Neolithic and #BronzeAge sites, we're at Stowe's Pound. This massive hilltop enclosure near Minions is considered to possibly date from as early as the Neolithic.

Finally, we can't leave Cornwall without a visit to the Hurlers, three #stonecircles on the moor near Minions. It's not easy to get a shot of all three!

Thanks for all the lovely feedback. I'm going to head across the Tamar to Dartmoor, another feast of mostly #BronzeAge sites, where stone circles, stone rows, cairns and settlement sites abound.

This Brisworthy stone circle, near the southwestern edge of the Moor.

Just a little way uphill from Brisworthy there is a fine cairn circle on Ringmoor Down, at the end of one of Dartmoor's many stone rows.

Still near the western edge of the Moor there is a very unusual multiple-concentric circle at Yellowmead. It may originally have been a complex cairn that's been robbed, but it's certainly an oddity.

Heading further into the inner spaces of the Moor is the wonderful Down Tor or Hingston Down cairn circle, at the end of a long stone row.

Nor far away is the extraordinary complex at Drizzlecombe, three stone rows, boasting some of the Moor's biggest stones, as well as cairns. Seems to be a place of congregation for the Moor's ponies, cows and sheep as well.

A few miles north, another wonderful #BronzeAge complex can be found at Merrivale, where there is a stone circle as well as rows and cists.

Heading southeast, the Erme Valley is rich with prehistoric settlement sites, as well one of the longest of Dartmoor's stone rows which terminates at The Dancers (or "Kiss-in-the-Ring") cairn circle.

Above the Erme on Stalldown there is a brilliant stone row, made up of large standing stones, a contrast to small size of the stones in most Dartmoor rows.

Way up on the northern edge of Dartmoor is the lovely Nine Stones (I know, another one) of Belstone. It's actually a cairn circle rather than a 'proper' stone circle.

Final one from Dartmoor, and one of the more difficult to get to. This is White Moor or Little Hound Tor #stonecircle on St George's Day 2011.

A few #Dorset megaliths for you now, starting with the fallen #stonecircle at Kingston Russell.

Close by is the much older Grey Mare & her Colts, a #Neolithic chambered long barrow.

Another fallen #Dorset stone circle at Hampton Down. This one has views to the coast and the stones are rich with flint nodules.

A much stranger megalithic site, The Hellstone is a reconstructed (almost certainly incorrectly) #Neolithic chambered tomb. Great place though!

And last one from Dorset, the Nine Stones (I know, I know) of Winterbourne Abbas #stonecircle.

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Into #Somerset and The Cove at Stanton Drew. These stones are presumed to be the remains of the chamber of a #Neolithic long barrow. They stand in a pub beer garden. In folklore they represent the bride and groom of a wedding party, with drunken vicar fallen between.

The rest of the wedding party have been petrified as they danced, in the three stone circles at Stanton Drew.

Slightly further east is the wonderful Stony Littleton #Neolithic long barrow. A famous feature here is an ammonite fossil used prominently in one of the stones forming the entrance.

#Wiltshire has so many famous #Neolithic and #BronzeAge sites that it's difficult to know where to start. I guess the obvious place would be Salisbury Plain. This is Durrington Walls henge, to the northeast of you-know-where.

Close by is the site of Woodhenge. The wooded poles are long-eroded away and concrete posts mark their places. An enigmatic site.

The wider Stonehenge landscape has some cracking round barrows, as good as you'll see anywhere. These are Old King Barrows and New King Barrows.

Stonehenge. No, I still haven't 'been' there.

So moving north swiftly we come to #Neolithic wonder that is the Avebury landscape. The largest manmade prehistoric mound in Europe, fine long barrows and obviously the circle henge and avenues.

Starting with West Kennett long barrow.

Silbury Hill (please don't climb it).

Adam and Eve, the Long Stone cove at the end of the lost Beckhampton Avenue.

Avebury circle henge, one of the wonders of #Neolithic Britain.

West Kennett Avenue.

Going to leave #Wiltshire for a quick trip to my two favourite #Neolithic sites in #Oxfordshire now.

This is the wonderful Wayland's Smithy long barrow.

Then we have the complex of sites at Rollright. The folklore here is of a would-be king and his knights and soldiers, turned to stone by a witch.

The King Stone, The Whispering Knights and the King's Men, collectively The Rollright Stones.

Going to pause there for the moment, petrified in stone. Time has run away with me today! Thanks for all the lovely comments

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A little further, we'll have a look at half a dozen sites from #Gloucestershire. The county is not well known for megaliths, but there are some fine chambered long barrows from the #Neolithic.

This is Windmill Tump long barrow near Kemble.

Slightly to the west is one of Gloucestershire's rare standing stones. There's a possibility it started out as part of the chamber of a long barrow, but if so it's now long gone.

The Longstone of Minchinhampton.

Further west again takes us to a fine #Neolithic chambered long barrow with a marvellous name. This is Hetty Pegler's Tump near Uley.

A mile away at Nympsfield, you can view the chambers of a contemporary long barrow exposed to the air.

Heading into the lovely beech woods to the northeast now. This is West Tump long barrow, one of my favourite places to visit in Gloucestershire. When excavated in 1880 it was found to contain the remains of about 20 people. These monuments were communal.

No visit to Gloucestershire's prehistoric monuments would be complete without a trip to the wonderful Belas Knap long barrow high on the Cotswold escarpment above Winchcombe.

Before leaving Gloucestershire, we'll head to the far west and the Forest of Dean. Over the Severn, it feels like another count(r)y. Here you can find the kind of classic #standingstone absent from most of the county, the Long Stone of Staunton.

Final county for today, #Herefordshire where I grew up. There are some first rate hillforts, but very few remains from the #Neolithic and #BronzeAge. To find those, you mostly have to head southwest to the Welsh borders.

This is the King's Stone, Wern Derys.

To end then, #Herefordshire's best know prehistoric monument, Arthur's Stone chambered long barrow near Dorstone.

Thanks for all the interaction and comments today, I hope you've enjoyed these #Neolithic and #BronzeAge sites from the south of England.

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As it's a grey and rainy day here, I thought I'd brighten it up by hopping across the Welsh border and extending this thread with half a dozen #Neolithic and #BronzeAge sites in #Monmouthshire.

Starting with Harold's Stones, three stunning monoliths at Trellech.

Next, overlooking the Hafren (Severn) is the #Neolithic chambered long barrow at Heston Brake.

Heading further west we come to the complex on Gray Hill. There's a stone circle (which may be the remains of a cairn) with central stones, plus two tall outlier stones. Again, the site has terrific views of the mighty Afon Hafren.

Further back in time is the Gaer Llwyd #Neolithic chambered tomb.

Finally from #Monmouthshire we'll climb up into the big hills above Abergavenny to visit the beautifully located Blorenge/Blorens #BronzeAge round cairn.

The views of the Black Mountains from here are stunning.