As far as I can tell Cardboardia is an artist gathering in Moscow which takes place in/around a cardboard ‘village’ called cardboard town. I don’t speak or read Russian, and online translators are buggy, but it looks like a less-drug-centered burning man - with cardboard. Artists gather and share their work & performances in and around the cardboard town, many of the works consist of actual cardboard. Some of the performances are musical, there even was a cardboard town group wedding. Looks like fun, whether you’re into cardboard or not - or if you speak Russian or not. The first event took place in 2007 in Moscow, there have been several Cardboardia events since. Looks like the next one takes place in 2011.