The GF and I are taking advantage of IcelandAir's no-additional-cost layover day on a Europe trip next month, and I'm looking for recommendations from Monkeys on a modest hotel and sightseeing options. Yeah, it's not much time, and I understand the airport is a bit of a drive outside of Reykjavík, but surely there are worthy things to see and do our first time in Iceland. Whacha got?