(Sarah of the Clue Crew delivers the clue from Denmark.) I'm in Denmark at a museum named for these Norse seafarers; this is the world's largest reconstruction of one of their ships
Unearthed Viking Boat ~ The Viking Ship Museum ~ Oslo, Norway 
..... Reconstructed face of a powerful Viking era woman named Estrid, based her
... [DOC] [TLE] Collapse: how societies choose to fail or succeed [PAR] Chapter 16: The World as a Polder: What Does It All Mean to Us Today?