One million people of Polish ancestry live in Chicago, giving the city the largest Polish population outside of Warsaw. So it's no surprise that Chicago is the site of the Polish Museum of America, located in the neighborhood where many of the first immigrants settled. The museum has one of the most important collections of Polish art and historical materials outside Poland (it is also the largest museum in the United States devoted exclusively to an ethnic group). The museum's programs include rotating exhibitions, films, lectures, and concerts, and a new permanent exhibit about Pope John Paul II. There is also a library with a large Polish-language collection, and archives where visitors can research genealogical history (call in advance if you want to look through those records). Allow a half-hour.