Currently, the world's longest undersea section of a tunnel belongs to the Channel Tunnel, which has a 23.5-mile (37.9 ...

It took nearly 200 years of planning and one of the most ambitious construction efforts in history to connect England and ...

Permission is being sought to use land that once housed thousands of people working on the Channel Tunnel for live music events.

By way of comparison, the 50-kilometer (31-mile) Channel Tunnel linking England and France, completed in 1993, cost the equivalent of £12 billion ($13.6 billion) in today’s money.

The purpose-built factory is the world’s largest tunnel-making facility and combined with the work harbor covers an area of 220 hectares — the size of over 300 soccer pitches.

The purpose-built factory is the world’s largest tunnel-making facility and combined with the work harbor covers an area of 220 hectares — the size of over 300 soccer pitches.

As an “immersed” tunnel, instead of being dug through solid land mass like the Channel Tunnel, the Fehmarnbelt is made using prefabricated concrete sections which are dropped into a trench dug ...

As an “immersed” tunnel, instead of being dug through solid land mass like the Channel Tunnel, the Fehmarnbelt is made using prefabricated concrete sections which are dropped into a trench dug ...