Given that the foundations for this giant $1bn tower have been completed, it stands a fair chance of actually seeing the light of day. It will not contain hotel rooms or offices but instead serve as an observation tower, while the tip will emit a beacon of light. And it will be tall. Taller, in fact, that the Burj Khalifa, the highest structure in Dubai (the exact height has not been revealed). The opening is slated for 2022, so you might need some patience.