Vitrified Forts? (Scottish Hill Forts; Inca Structures, Etc.)

[Crawf]

Visited this one a few times, the fallen rocks are weird with solid as a rock bits that look like wood...from 200BC-100AD!

http://www.butemuseum.org.uk/iron-age-bute/ (has wall picture)
https://www.megalithic.co.uk/article.php?sid=32141

 

[Vardoger]

Interesting short from BBC about Broch building in Scotland.

https://www.bbc.com/reel/video/p0cpl9nf/why-the-mysterious-scottish-broch-is-making-a-return

Why the mysterious Scottish broch is making a return​

28 JULY 2022|ARCHAEOLOGY
Standing amid the stunning Scottish wilderness for the past 2,000 years, these mysterious stone structures are a symbol of Scotland’s unique archaeological past.
Known as a broch, the exact purpose of these iconic Iron Age ruins is still unknown, however a group of experimental archaeologists believe that an ambitious project to build a full-scale broch from scratch could finally help us to better understand their past.
Video by Chris Griffiths
Narration by Katrina Bell
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[Bad Bungle]

Only broch I've visited was at Calloway (Isle of Lewis) years ago. What greatly impressed me was an episode of Time Team where they did a 3D virtual reconstruction of a broch (a complicated structure of concentric walls) from a field of random stones.