Plans by a billionaire heir of luxury sports car maker Porsche to build a private tunnel and underground garage beneath his mansion on one of Salzburg's most iconic hills have sparked outrage in the ...

For the 1920s literary celebrity Stefan Zweig, part of the charm of his “romantic and impractical” Salzburg home was that it sat on an Alpine foothill “inaccessible by car.” For automotive tycoon ...

In this video, we showcase the incredible process of building a secret underground tunnel house, hidden deep within the jungle. Using ancient skills and traditional techniques, this project ...

The Porsche billionaire bought the Zweig Villa in Salzburg in 2019 and will be moving into it this year, when his underground ...

Set atop one of the most private ridgelines in Jackson Hole and surrounded on three sides by conservation properties, this ...

One idea to prevent another hurricane catastrophe in Houston is massive underground tunnels to redirect storm water. New reporting reveals Elon Musk's Boring Company has been involved in the planning.

President Donald Trump said the future of funding the $16 billion Gateway Tunnel is "up to him" but officials said they can't ...