Back in February, a piece of concrete fell inside the Prudential Tunnel westbound. And that might have had you thinking about ...

Multiplex is building a new integrated London Underground ticket hall 33 metres below ground - and three towers up to 34 ...

Bengaluru's secret British-era railway tunnels are a forgotten marvel. Learn how these underground paths once powered ...

A feat of engineering to improve water quality in Bolton has won a leading award. The Longsight Park Tunnel was carved out ...