Chicago skyline, historical architecture, 1920s, Art Deco buildings, Willis Tower, vintage streetcars, Lake Michigan, urban park, 1893 World's Fair, Great Chicago Fire, 1871, city reconstruction, brick and stone materials, steel-frame skyscrapers, Chicago River, industrial era, jazz music, Prohibition, speakeasies, Al Capone, gangsters, Chicago blues, cultural diversity, immigrant neighborhoods, Chinatown, Little Italy, Pilsen, Mexican murals, historical landmarks, Millennium Park, Cloud Gate, The Bean, soft sunset lighting, wide-angle lens, clear sky, dynamic composition.