Adding a sound system to something as skeletal as a bicycle is tricky task, but one that has been perfected around the world. From gangs in Queens to Critical Mass rallies boom box bikes are an interesting technological mix of eco and brash.

A selection of our favorite camera rigs, modifications and improvisations from eccentric Czech artist Miroslav Tichs trash camera to a camera which is setup to deliberately create the red-eye effect.

From London to Moscow to New York, Chicago, Dubai and Shanghai, almost every single high rise city in the world is seeing skyscraper projects canceled even as they have their foundations laid and start to rise from the ground.Here is a list of the biggest projects that have been put on hold so far. The disappointing reality is that almost none of them have any particular architectural merit, apart from Calatrava's Chicago Spire, perhaps, and reflect a period when architecture firms were too overloaded with work to think very hard about the designs. Vote for which ones you would have liked to have seen finished.

Identified Unidentified Flying Oobjects. A list of some real flying saucers, from the US and Soviet military, a video of the amazing Moller M200x, some flying saucer inspired architecture and a patent for a nuclear powered flying saucer from British Rail, bizarrely. Vote for your faves.