While some figures may have been fudged in regard to the "world's most expensive billboard," the fact remains that it did indeed have a guy on a hydrogen peroxide rocket belt flying around it back in 2012. And in 2015, Jetman daredevil Yves Rossy took to the skies over Dubai to fly with an Airbus A380 in a spectacular publicity stunt for Emirates Airline.

Also in 2015, the UAE's Directorate of Civil Defence signed a memorandum of understanding with New Zealand's Martin Aircraft Company for an initial delivery of up to 20 Martin Jetpacks for use in firefighting in high-rise buildings. It's interesting to note that all mention of this deal has disappeared from the Martin website, indicating that this project might be dead.

Today, the Dubai Media Office released video of a new jetpack firefighting initiative that's a bit simpler and more affordable.