The Northern Lights are truly a phenomenon . . . that I didn't get to see when I was in Iceland, unfortunately. Due to a ton of rain, the lights weren't visible for any of the days I was there, but when seen through clear skies, it's something you'll never forget. In recent weeks (except during my visit), the skies have been so clear in Reykjavik that the city has been shutting off the lights so people can see the Northern Lights better.