There are a handful of ultra-high-net-worth pursuits that sound tempting, but don’t really make sense. They’re typically wildly expensive and operationally inconvenient. And always difficult to ...

It’s a bird, it’s a plane, it’s Super Sub! U-Boat Worx’s just-launched, ruby-red flagship may have more in common with the original 1950s Superman than the color of his cape. The Dutch submersible ...

Submarines began navigating the depths before the 1900s, and they've advanced considerably in all that time. Modern military subs are stealthy, nearly silent killers roaming below the waves, and the U ...

Admittedly, though, when it comes to the ultimate superyacht toy, the mini-sub’s appeal is tough to beat. People have been fascinated by what lies below the surface of the ocean for millennia.

The design has the lithium batteries and thrusters at the rear so the pilot and passengers can enjoy the view. U-Boat Worx The three-person submersible has a “droplet-shaped hull,” according to U-Boat ...