Through advanced radar and laser detection, the remains of a medieval fortification have been located in the foothills of south-eastern Poland. Researchers wonder if this mysterious hidden stronghold could reveal evidence of the Bohemian Wars and Hussite warriors as they fled across central Europe in the 15th century.
Book of Kells. https://www.tcd.ie/Library/bookofkells/book-of-kells/
Cats walking on your stuff since the 15th century!