Aside from their love of the sea, the ancient Greeks and Vikings shared much more that united them and divided them.

When we think about Norse Mythology, it can be difficult to shake the image of an otherworldly Chris Hemsworth with bulging muscles, luscious golden locks and a distinctly sarcastic sense of humour.

Stephen Smith is a managing editor for CBSNews.com based in New York. A Washington, D.C. native, Steve was previously an editorial producer for the Washington Post, and has also worked in Los Angeles, ...