[anewvillager]

There's something like this in the movie Lord of the Rings: The Return of the King

https://www.youtube.com/watch?v=i6LGJ7evrAg

I wonder if this method of communication was EVER used by any civilization.

[detaro]

It's been described throughout history, so quite certainly.

[anewvillager]

Ohhhh, that's true!

https://en.wikipedia.org/wiki/Beacon#For_defensive_communica...

[edoceo]

It's in another cool fantasy movie, with signal towers, I can't find it now despite frantic Google (results terrible). Was very cool, wish I could remember the name.