9: Sky Bridge, Abu Dhabi
New York architect Eytan Kaufman's Sky Bridge Hotel in Abu Dhabi was going to be a 264-room hotel suspended in a blimp-like structure over a bridge that connected the main island to Lulu Island.

There were plans for 40 suites, a conference area, restaurants, roof gardens retail space and a pedestrian promenade.

However, once again financial pressures pushed this design into the trash can, although we hope Kaufman will one day have his dream hotel realised.

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