Including a 27-room Park Avenue maisonette, a Hamptons modern by an I.M. Pei architect, and the Upper East Side Bubble House.

In 2020, about five years before her death, hair-and-beauty mogul Sydell Miller of Palm Beach paid a combined $42.56 million for two unfinished condominiums that encompassed the entire top floor of ...

The magnetized needle of a conventional compass wants to align with Earth’s magnetic field—helpful, unless you’re near the ...

In the mid-19th century, Bernhard Riemann conceived of a new way to think about mathematical spaces, providing the foundation ...

Here's today's Connections answer and hints for groups. These clues will help you solve New York Times' popular puzzle game, ...