Last month I had the good fortune to tour Versailles. No, not the one in France, the one in Florida.

Versailles is the partially-finished mansion near Orlando that clocks in at around 90,000 square-feet, making it what could be the largest privately-owned home in America. (The Vanderbilts Biltmore Estate, at 175,000 square feet is no longer a single-family residence but part of the Biltmore Co.)

As Wall Street Journal readers know, Versailles is on market for $75 million as is, or $100 million finished. It is being sold by Jacqueline and David Siegel, who made his fortune from timeshares but who has taken a financial hit from the housing and credit crunch.

Mrs. Siegel gave me the tour--along with Realtor Lorraine Barrett--and I asked her how she wound up with a home that is almost twice as large as the White House: "We had planned maybe a 12,000 square-foot home, but our family grew, we have eight kids, and during the design process the house just kind of took on a life of its own."

She added, "I wanted a bowling alley for the kids and I wanted an indoor roller- and ice-skating rink, and my husband wanted a 10,000 square-foot health spa with an indoor relaxation pool and the house kept growing and we had to keep buying more lots."