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The “world’s most expensive billboard” was recently constructed in a place one could only imagine would attempt to construct a $1.3 billion billboard: Dubai. Skydiving company Skydive Dubai unveiled the billboard and claims that the monthly operating expenses would equal $1.3 billion due to the addition of the man flying with a jet pack – yes, jet pack.  The live demonstration saw a man fly from behind the billboard for about 20-30 seconds before landing back on the billboard. You can see a video of it as well as their cost calculations here.