When the Channel Tunnel opened in 1994, the undersea rail link saw Britain grow closer to the European mainland than ever before.
However, had things gone a little differently, history might have taken a very different turn. Among the competing proposals for a fixed Channel crossing was a massive bridge.
The Euro Route proposed that motorists simply drive across the Channel, perhaps stopping for duty-free shopping in the middle of the sea along the way.
The concept of a permanent tunnel or transit link between Britain and France dates back a long way.
Author's summary: A proposed bridge to cross the Channel never came to fruition.