The website English Russia has an excellent article with eerie photos of one of the lighthouses -- there are more than a hundred -- built during the Soviet days to run on nuclear power without any human beings stationed in them. Alone in the frigid waters above the Arctic Circle, they have fallen into disrepair as looters have stripped them, becoming "radioactively polluted."
"It was a kind of robot-lighthouse," according to the site, "which counted itself the time of the year and the length of the daylight, turned on its lights when it was needed and sent radio signals to near by ships to warn them on their journey. It all looks like [it's from] the sci-fi book pages..." This is a horror movie set waiting for a crew, and the only problem is it will probably give them all radiation poisoning before they're done filming.
(I found this through a friend of mine, and I believe he found the link from Boing Boing.)