From Costa Rica’s lush landscape to New York City's leafy corners and Spain's sunny southern coast, here’s a look at six residences that defy conventional notions of ultra-luxury.

The Sanger property has a curved indoor ceiling and a living room designed around a Steinway piano.

In keeping with shows that satirize the rich, from "White Lotus" to "Succession," Apple TV+'s "Your Friends & Neighbors" ...

Exterior spaces are evolving, refined, and reimagined into artful, functional, and luxurious retreats. The most discerning ...