In Norse mythology, Bifröst is a burning rainbow bridge between Midgard, the realm of man; and Asgard, the realm of the gods. Bifröst ends at Himinbjorg, the hall fo the god Heimdallr, gaurdian of Bifröst. Standing on the edge of a cliff in the rugged highlands of Iceland, it's easy to believe the old gods still live.  Could this rainbow, crossing the waterfall Háifoss, lead the way to Asgard?