Alsnö hus ('Alsnö House') is the ruin of a palace at the Hovgården settlement archaeological site, located on the island of Adelsö (formerly called Alsnö) in Lake Mälaren in central-eastern Sweden. The ruins are part of the combined Birka and Hovgården UNESCO World Heritage Site.
HistoryLayer draws the world as it was in any year from 123,000 BCE to
2026. Move the slider and the borders redraw for that year; the map
carries 23,890 events, 12,790 people, 837 wars and 13,183 cities, each
one readable in place. Signing in is optional and lets you keep what
you find.