Some people collect baseball cards, or stamps, or coins. Rep. Peter Roskam, R-Ill., collects maps autographed by foreign officials — including a rendering of Libya inked by the late strongman Moammar Gadhafi and one of Tibet signed by the Dalai Lama. Yahoo News talked to Roskam about his pastime and photographed some of his greatest gets. (Olivier Knox/Yahoo News)

Photography by Aaron P. Bernstein for Yahoo News

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