Illustration: Penelope Dullughan

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5. A Trip Back in Time
It's one thing to learn that your great-great-grandmother owned a saloon in Sioux City, Iowa; it's quite another to stand on her former stomping grounds and imagine yourself sliding a pint of suds across the bar. The web will cough up the locations where your ancestors played, fought, and hung their pinafores—the road trip is up to you. (Check out cyndislist.com, a bonanza of genealogical resources.)