The glass and white-painted steel roof floats elegantly above the building, letting in natural light so that how the works look changes with the day.

ECONOMIST: Another way to house art

They aim to transform the industry by reviving a business model--a steel mill that distributes its products--that failed in the U.S. two decades ago but still works overseas.

FORBES: Men of Steel

The same drive that has made him such a pugnacious entrepreneur pushes him to accumulate ever grander pieces, including monumental works by sculptors like Richard Serra, whose steel structures can stretch hundreds of feet, and room-size installations by artists like Mike Kelley.

FORBES: Why the man who controls Gucci had to have his own museum.

At Nicolas Feuillatte, by contrast, visitors see the giant stainless steel vats in which the wine is blended, and the above-ground temperature-controlled storerooms, where specially commissioned works of modern art are displayed.

ECONOMIST: Champagne