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Bottomless bowls of soup, Vegas buffets, and six-pound hamburgers feed patrons with unending appetites.
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Adam indulges in BBQ feasts across the country.
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Pittsburgh, Pa.: white-water rapids; Primanti Brothers; the National Aviary; the soaring club.
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From a 10 lbs steak to a 300 lbs burger, America's biggest beef portions.
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Triple-decker grilled cheese sandwich in Cleveland; lobster-stuffed mac and cheese in New York; a fiery cheese spectacular in Chicago.
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British Airways retires the supersonic passenger plane.
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Chocolate 101 at Recchiuti University in San Francisco; science behind the cacao bean.
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