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BIG. Bringing skiing to the flat lands of Denmark while also providing energy via waste incineration, this latest building by BIG is so good I'd like to eat it! This also includes a smokestack which emits reminder smoke rings as 1 ton of fossil CO2 has been generated. BIG Architects won the city's design competition as well as my designer's heart.
update: more info on how the CO2 smoke rings are created by German art group Realities United using the Bernoulli effect in
fast company design today