Martin Zweig

Everyone knows that Manhattan's most expensive apartment is still Martin Zweig's $70 million penthouse at The Pierre. Of course, it hasn't moved in quite a while.

Now, a very wealthy buyer can purchase an apartment at The Pierre for half that price. A nine-room apartment has just hit the market at $35 million, listed with Meredyth Hull Smith, of Sotheby's International Realty.  read more »

- Michael Calderone

Once again, Forbes’ Sara Clemence researches extensively to provide a luxury real-estate list. Previous pieces tracked the most expensive zip codes or rentals; this latest one tackles the priciest penthouses in several U.S. cities.

Hedge-funder Martin Zweig’s $70 million penthouse tops the list once again here in Manhattan. However, it’s unfortunate that 16-room spread at the Pierre gets the 2006 prize, considering that it hasn’t budged since October 2004. Not even a price cut to entice wealthy buyers.  read more »

So is Mr. Zwieg serious about selling the 11,000-square-foot apartment, or does it remain on the market solely to take the top spot on real estate "best of" lists?

- Michael Calderone