Vera Wang's Beverly Hills, Calif., home.(Flickr Flame08)

Vera Wang's Beverly Hills, Calif., home.

When it comes to real estate, in some ways, the lords of the corporate world are as mortal as the rest of us. Buying may be easier, but no matter how deep your pockets, selling can be a challenge. With the help of Zillow.com and Trulia.com, we tracked 10 business moguls with homes they're trying to sell and others they've recently bought. Some are dropping their stellar asking prices; many have moved on before selling. Others, on the brink of losing membership in the exclusive one per cent club, had no choice but to sell. All are worth a king's ransom.