Over the last year or two there’s been much in the media about the so-called “world’s longest train journey” – a route which runs (hypothetically) from Lagos in Portugal to Singapore.

The Gotthard Base Tunnel is an engineering marvel, holding the title as the world's longest and deepest railway tunnel - but ...

The Gotthard Base Tunnel in the Swiss Alps is the world's longest and deepest railway tunnel, spanning the 35.5-mile distance ...

Discover the world's 10 longest railway tunnels, from the Gotthard Base Tunnel to the Channel Tunnel, showcasing impressive ...