What was 'Bifrost', the bridge that led to 'Asgard' in Scandinavian mythology?
Colors of rainbow Rainbow Quaternary rainbow 🌈 Twinned rainbow Rainbow colour Stacker rainbow Secondary rainbow A pot of gold Reflected-sunlight rainbow Water lens RAINBOW Colors of the rainbow Reflection rainbow Axis of the rainbow Double rainbow Tertiary rainbow Reflected rainbow Rainbows Supernumerary rainbow Primary rainbow Snowbow