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 ...

They’ve got safe houses in New Zealand and private planes full of jet fuel, but cruise-ship-sized yachts are how the planet’s richest people plan to escape a world gone to hell. That’s why, for the ...

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 ...