The real-life house, designed for a “titan,” is the most expensive ever sold in Utah and took seven years to build ...

Instead, it involves a Porsche heir and a plan to dig a tunnel through a mountain that’s classified ... can build and access a garage under his mansion. Ferdinand Porsche purchased his property ...

What started as an expedition to find undiscovered rooms deep in Mexico’s Guerrero mountains soon evolved ... Tlayócoc, or “Cave of Badgers” in Nahuatl, rises to an elevation of 2,380 ...

There are plenty of hideouts in the rugged terrain of the Ozark Mountains, from abandoned cabins ... in the hundreds of caves that lead to vast subterranean spaces. As local, state and federal ...