At least it makes my discovery of the day relevant...
This installation is called 'Nimbus' and is by Amsterdam based artist Berndnaut Smilde. Apparently he refuses to explain how he created the cloud... oooh mysterious. Either way, it's pretty damn impressive. Here's his website.For those who are as sodden and grumpy as me, here's the happiest song I think has ever been created.
Keep dry and warm!