I'm

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. Good morning. I'm Jane Pauley, and this is a special edition of Sunday morning, by design.

We're in the city of Brotherly Love, Philadelphia, as America prepares to celebrate its 250th birthday

in just a few weeks. The Declaration of Independence was written and signed here in 1776.

So was the Constitution in 1787.

Philadelphia boasts some of our nation's oldest homes.

Betsy Ross lived here, and this is the oldest existing block of homes in all of these United States.

250 plus years of history and style, emblematic of our never-ending quest to live better,

which helps explain while we'll be spending the morning at this early 1900's home on

Philadelphia's fabled mainline, Ardrasen, a mansion with roots in the gilded age.

Back then, this was state-of-the-art, a signpost of modern times, the very best money could buy.

An all-American quest, which Lee Cowan reminds us, continues to this very day.

The nuclear family used to be at the center of designing a dwelling, but that's been shifting.

That idea that you lived alone on your land, it's kind of a holdover from some, I don't know,

European colonial ideal.

Today, many single-family lots can legally include more than just a single

family. Sharing their castles ahead on Sunday morning. Back in 1977, the movie Star Wars introduced us

to a world of style all its own. This month, a new Star Wars film is coming to theaters, and its

director, actor John Favro, will be talking with our Tracy Smith.

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