These are possibly the most impressive gadgets on earth, beautifully complicated, polished stainless steel instruments that employ electron, x-ray, and ion probes, often in combination with depth profiling techniques, for surface analysis. They are the instruments featured on the covers of science lab and university brochures and are exactly what I want for my birthday. Vote for your faves.

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.

Although Apple has recently released a beautifully designed keyboard which hints at what an Apple mini laptop may look like, it is the combination of tactile feedback and screen based keyboards which promises to make significant developments in keyboards in the near future. Here is our list of our favorite keyboards, vote for your faves.

Despite the title of this list, several of these housing projects were designed by some of the world’s most famous architects and lauded at the time. The undeniable squalor of 19th Century slums combined with modernism to produce and attempt to clean things up and create a crystalline utopia. The end result was often an anti-septic vision of hell, a place devoid of organic spaces and evolves social interaction.The architectural crime that started with Corbusier’s insane proposal to demolish the historic center of Paris and replace it with something like the worst of the South Bronx and culminated in the White and Black racially segregated human silos of St Louis's Pruitt-Igoe, continues to this day and even as middle class, owner-occupied dwelling such as those in Hong Kong. Its principal feature is de-humanizing alienation. Vote for your worst…

Until very recently, dental surgery appears to have been carried out with carpentry equipment. In fact, quite literally, since early dental drills were adapted from woodworking equipment. Here are some of our favorites ranging from the beautiful to the macabre.

Some of the most beautiful pieces of architecture in the world have a spiral stair as the final flourish. The spiral stair is an architects favorite, from Gaudi to Corbusier to Foster, but some of the most interesting spiral stairs are accidental pieces of architecture, such as those inside lighthouses or on giant silos and storage tanks. Here is a deliberately diverse collection of some of our favorites. Vote for yours.