Plans have been unveiled to build a 100-story 'hypertower' in Dubai, which the developers claim will be the world's tallest residential building. Named 'Burj Binghatti Jacob & Co Residences', the hypertower will have diamond-shaped spires at the top to resemble a crown. The building will house a dedicated concierge team, offering services such as daycare, bodyguard, chauffeur and private chef.