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, a bonanza of genealogical resources.)