Here's one I just learned about the Penske Donohue rapid fueling rig (I've already posted about the supercooled fuel) they started with a fuel drum 10 feet off the ground to test the race track's response to the new gadget during quals, THEN raised it to 20 feet for the race, for FASTER fuel loading!

Above the short tower, and by the looks of the pivot points, might even be articulated for height adjustment! Wouldn't that be amazing to learn they could lower it like with a crank that scissor jacked it from low to high, install fuel into the drum, and dry ice, then jack it up to height for the improved gravity drain?  

https://www.facebook.com/choppertown/videos/445945861441681