Here's a building design that's a bit different from the norm: Singapore's digital cloud skyscraper, entitled "My Dream, Our Vision." It uses permutated cubes to create a pixilated look, making it looks like something fresh out of the internet.
It's clearly just a design for now, but it was a finalist in a competition to design a pavilion for the World Expo 2010. Will it ever become a reality? Who knows, but I sure would love to see something this fantastical and different pop up in a city. Normal skyscrapers are so passé, after all.