Londoners love to complain about ugly new high-rise buildings besmirching our iconic skyline. Some even say that these architectural abominations - some of which are causing beautiful, historic buildings to be razed in order to make space for them - threaten to destroy all that's great about this city. What would make us feel better about the situation? Well, the very least the developers could do is put giant slides on the sides of them. LA has the right idea. This Friday, tickets go on sale for the Skyslide, which is on the seventieth floor of the US Bank Tower, highest building in the city. Made of glass (!) and perched 1,000 feet up in the air, it will whisk those brave enough to try it on a swift, terrifying journey down to the floor below. There's probably less chance of pooping your pants if you take the stairs, but where's the fun in that?