Chicago to Cuba for $187, 1949, Chicago.

Chicago to Cuba for $187, 1949, Chicago.

Looking north west on Division at Ashland, 1939, Chicago

Looking north west on Division at Ashland, 1939, Chicago

Looking west on Jackson to Dearborn, 1936, Chicago

The Daniel Burnham designed Great Northern Building was demolished in 1961 to make way for the Dirksen Federal Building.

Looking west on Jackson to Dearborn, 1936, Chicago

The Daniel Burnham designed Great Northern Building was demolished in 1961 to make way for the Dirksen Federal Building.

Looking south on Michigan Ave from Adams at the Art Institute, 1920, Chicago

Looking south on Michigan Ave from Adams at the Art Institute, 1920, Chicago

Looking east on Quincy from Wells, with the old Post Office in the distance, 1910, Chicago

Looking east on Quincy from Wells, with the old Post Office in the distance, 1910, Chicago

Looking east from State Street between Randolph and Washington, 1839, Chicago

Looking east from State Street between Randolph and Washington, 1839, Chicago

The Pullman Building at the SW corner of Michigan Ave and Adams, 1893, Chicago.

The upper floors of Pullman’s downtown headquarters were some of the most fashionable apartments in the city. The building would be demolished in 1956.

The Pullman Building at the SW corner of Michigan Ave and Adams, 1893, Chicago.

The upper floors of Pullman’s downtown headquarters were some of the most fashionable apartments in the city. The building would be demolished in 1956.

Looking north on Michigan Ave from Adams, with the Interstate Exposition Building to the east, 1887, Chicago.

The Interstate Expo would be demolished to make way for the Art Institute in 1891.

If you look north of the Expo Building, you can see the first baseball park home of the Chicago White Stockings, later renamed the Cubs.

Looking north on Michigan Ave from Adams, with the Interstate Exposition Building to the east, 1887, Chicago.

The Interstate Expo would be demolished to make way for the Art Institute in 1891.

If you look north of the Expo Building, you can see the first baseball park home of the Chicago White Stockings, later renamed the Cubs.

Looking north on Michigan Ave from what is now Congress at luxury residences known asTerrace Row, 1870, Chicago.

Looking north on Michigan Ave from what is now Congress at luxury residences known asTerrace Row, 1870, Chicago.

Looking north at the NW corner of Michigan Ave and Adams St, at the house of Henry Hamilton Honore and family home of Bertha Honore Palmer, 1865, Chicago.

Looking north at the NW corner of Michigan Ave and Adams St, at the house of Henry Hamilton Honore and family home of Bertha Honore Palmer, 1865, Chicago.

Ski jump demonstration on Michigan Ave, 1976, Chicago

Little Company of Mary Hospital, 2800 W 95th, 1960, Chicago

Little Company of Mary Hospital, 2800 W 95th, 1960, Chicago

Looking south to Oak Street Beach, 1957, Chicago

Looking south to Oak Street Beach, 1957, Chicago

Looking south on Michigan from Wacker, 1948, Chicago

Looking south on Michigan from Wacker, 1948, Chicago

Entrance to Lincoln Park, North Ave at Lake Shore Drive, 1932, Chicago

Entrance to Lincoln Park, North Ave at Lake Shore Drive, 1932, Chicago