A Transatlantic Tunnel, Hurrah!
It was built on the whim of a Victorian inventor with the aim of linking two great cities and developing the kind of friendship that still exists today.
But bad fortune befell the venture - and the tunnel lay idle ever after.
Until today, that is.
One end of the "tunnel" emerges next to Tower Bridge on the banks of the Thames in London - the other is next to Brooklyn Bridge on the banks of New York's East River.
It looks like something HG Wells might have imagined.
Each end has a giant telescope-like construction which appears to punch its way out of the earth.
There are dials, and levers, and thermometer gauges on the side of the 20m long brass and wood construction.
Peer into it and you can see people on the other side of the Atlantic.
Wave at them, they wave back at you.
Web-cam it ain't, but the Telectroscope is fascinating. I hope it's stays operational for quite some time.
Daily Mail article