Illuminated Nürburgring (german racetrack)
Translated from the YouTube info:
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540 LEDs ( 9m WS2812B ) let shine the Nürburgring .
Marked in red is the Adenauer Forst , White is the start / finish .
A blue dot surrounded the route symbolic of the top 30 …
Controlled by an Arduino Mega2560 Clone . By means of the potentiometers can be animated in a certain frame Set ( number of sections , whose ’ tail length ’ and the overall brightness ) the ( basic ) . Powered by a 5V / 40A power supply .
The installation will illuminate in 8m height the park / campground well … 
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Nice size! I like the addition of the potentiometers to tweak some variables.
How does it float in the air ? Is it around some transparent acrylic ?
There are attached steel strive, you can not see in the dark.
I have programmed something like a failsafe switch. Is this LOW after a reset, preset variable to take effect. If it is set to LOW after setting potentiometer, these are maintained (until reset).
I look if I have a video in which I test the pots and photos of the track in the light.