The telectroscope, a looking-glass tunnel connecting New York and London has been completed at last, over 100 years after it was abandoned. The tunnel, which starts in Brooklyn, was designed and partly executed by late 1800s inventor Alexander Stanhope St. George. A series of mirrors, cameras and a large underground tunnel, connects the two cities.
More details at the New York Times (seriously). The telectroscope goes live on June 15th. Some photos of the terminal ends in London and New York: