Anxiety over high-profile violence has the wealthy spending big on armed security, bunkers and even moats to keep themselves safe from intruders.

It’s easy to assume that a bigger house automatically means better design — more square footage, more luxury, more room to breathe. But walk through a few mega mansions, and you’ll start to notice ...

When it comes to luxury real estate, America’s wealthiest citizens spare no expense. From Gilded Age palaces to modern mega-mansions, these estates feature amenities most of us can only dream of — ...