Wowzers. How awesome would this be in your kitchen?
These spiral cellars provide cooling through an air circulation system and earthen insulation that requires no additional power. Originating in France (mais oui!), they are quite popular in Europe, particularly in the UK where they go for about $20,000 and up. There are various designs, some more conspicuous than others.
I know what to do with my winning lottery ticket. ;)