Lighthouses

It's 90% more efficient. You probably won't like it.
Chris Spargo and 2 more

We've been watching Turn of the Tide which is set in the Azores. There is a big shootout at a lighthouse, and then this video pops up. So now I'm looking at lighthouses in the Azores and there are a bunch of them, so a plotting we go.

Azores Lighthouses

There might be more, this is all of the ones listed on Wikipedia.