The expert dealer and decorator explains how he styled his extraordinary homes for a new book — and then divulges how he'd update four rooms.

We asked Anja Rubik, Waris Ahluwalia and Anne Pasternak what they're collecting, which city is the new art world capital and who is the best dinner guest to sit next to.

View spaces that incorporate first-rate contemporary art and design by notable talents Jeff Koons, Ron Arad, Tom Dixon and more. Then shop furniture, decor, art and more to curate your own 21st-century collection.

Soak up our gallery of 19 beautiful bathrooms — filled with marble bathtubs, 18th-century French tiling, bronze-inlaid vanities and more — to see how top designers have incorporated unconventional items to surprising effect.

From eat-in kitchens to cozy alcoves, these rooms celebrate the diverse designs and universal appeal of the casual dining space. Feast your eyes, then browse furniture, decor and more to inspire you — as you sip your morning coffee or grab a midnight snack.

Warmer weather is finally here! See 10 enchanting open-air spaces that prove exterior design is every bit as compelling as interior design. Then shop one-of-a-kind furnishings and decor to take your style outside the home while bringing nature inside with alfresco-inspired fine art and fashion.