The St. Louis World's Fair, also called the Louisiana Purchase Exposition, was held in 1904. These photos are from the Library of Congress Stereograph Collection.
Celebrating a century's advance, boat parade passing Electricity Building
From wireless telegraph tower west over
huge Manufactures Building, to the "Pike"
Looking S. W. between Manufactures and
Liberal Arts Buildings, to Festival Hall
Palace of Varied Industries and Gondola Landing on the Sunken Gardens
The beautiful Terrace of States, westward from Festival Hall