An underground tunnel network long rumored thanks to drawings by Leonardo da Vinci under Milan’s Sforza Castle are proven to ...

Watch as we construct a stunning underground villa, complete with a lush grass roof and a unique tunnel swimming pool. Using only primitive tools and natural materials, this project showcases ...

In this project, our team of three worked deep in the jungle to create the most unique underground swimming pool, featuring a ...

A joint venture of Tutor Perini and its heavy civil engineering subsidiary, Frontier-Kemper Constructors, has won a $1.18bn ...

By mid-2021, Fort Lauderdale received an unsolicited proposal from Musk’s firm to design and build an underground tunnel system. Critics lampooned the plan early on, saying it would do nothing ...

The Tulsa Foundation for Architecture is gearing up for its bi-annual underground tunnel tours on Feb. 8 and Aug. 9. The tunnel tours allow people to walk where history was made. A network of ...

Tickets are on sale for the Tulsa Foundation for Architecture’s bi-annual Tulsa Underground Tunnel Tours, which will take place Saturday, Feb. 8. The tours will take participants through the ...

Officials with the Gateway Development Commission say the contractor developed a plan that will save time on the $16-billion project.