The Titanic Memorial Lighthouse -- really a mini-lighthouse -- once stood on the roof of a Manhattan building. Every day at noon, from 1913 to 1967, the lighthouse's little Times Square-style ball would drop, "activated by a telegraphic signal from the National Observatory in Washington, D.C." according to a plaque bolted to its side.
The plaque does not explain what any of this has to do with the Titanic. The lighthouse was moved here in 1976.
