The idea of linking London and New York with an underwater tunnel has fascinated engineers and sci-fi fans for years.

Megastructures seem to be a trend in Asia with China building a $6.74bn underwater bridge with tunnels and man-made islands ...

Lower House Speaker Hiroyuki Hosoda, who only recently acknowledged his ties to the Unification Church, served as an adviser for a Japan-South Korea undersea tunnel project pushed by the church ...