Viking-Age Ring Fortresses

Glad to announce: recently, like many other colleagues Ambs before me, I have become a Viking w pin & certificate w Harald Bluetooth Guild at Trelleborg Viking Fortress (enlisted UNESCO Heritage site). Thx @FinnBerggren The Elderman for the experience, hospitality & photos! pic.twitter.com/Hc2pNfSZpX

— Tina Krce (@KrceTina) October 31, 2023

In Denmark🇩🇰, clever architecture protected locals from Viking attacks.

How? The secret can be found in the circular design of Denmark's Ring Fortress, a new UNESCO World Heritage site.

Check out this before & after to see why the fortress was hard to penetrate👇. #VisitEurope pic.twitter.com/RgG9PaeZw6

— Visit Europe (@visiteurope) November 15, 2023