Chicago--A National Register of Historic Places Travel Itinerary explores that past. The accompanying map, descriptions, and photographs introduce the city's history and architecture through looks at early skyscrapers, stylish homes, and buildings central to the African American community. This tour--usable on-line or while traveling through the city--features 25 properties, all of which are listed in the National Park Service's National Register of Historic Places, America's official list of places important in our history and worthy of preservation. It helps explain why Chicago remains at the heart of American history and architecture. Visitors may be interested in Historic Hotels of America, a program of the National Trust for Historic Preservation, located in the vicinity of this itinerary.