Eye Fell Tower

"Fell": From Middle English fellen, from Old English fellan, fiellan ‎(“to cause to fall, strike down, fell, cut down, throw down, defeat, destroy, kill, tumble, cause to stumble”), from Proto-Germanic *fallijaną ‎(“to fell, to cause to fall”), causative of Proto-Germanic *fallaną ‎(“to fall”), from Proto-Indo-European *(s)pōl- ‎(“to fall”). Cognate with Dutch vellen ‎(“to fell, cut down”), German fällen ‎(“to fell”), Norwegian felle ‎(“to fell”).

Usually meaning "of a strong and cruel nature; eagre and unsparing; grim; fierce; ruthless; savage. " as in "one fell swoop‎".

The idea is therefore to construct a huge searchlight designed to look like the Eye of Sauron atop the Dark Tower of Barad-Dur, as depicted in the Return of the King. It would use massed low-power laser diodes to generate a glaring red beam that would sweep to the horizon. And it would be assembled on top of a huge latticed metal tower in the centre of paris.

It would be activated by a phone line connected to an old-fashioned answering machine, set to turn it on with just One Ring.