The D Line is expected to be completed in 2027. Today, L.A. Metro’s subway tunnels connect some of the city’s most densely populated neighborhoods. There are many other great tunnels in ...

Between parked cars in a suburban street in Athens, workers fix a pump to an ancient stone well that in turn accesses an aqueduct built almost 2,000 years ago. The Greek capital, one of Europe's ...

Tunnels built to shelter Londoners during World War II bombing by Germany are set to be transformed into the British capital’s biggest new tourist attraction for years, according to the company ...

My son, Alon, spent his 24th birthday earlier this week in the dark tunnels of Hamas ... person – I am always inspired by his ability to connect with others and build deep bonds.