Chicago may not have bridges as grand as San Francisco's Golden Gate or New York's Verrazano Narrows, but the Windy City has plenty of amazing bridges. But they're notable for a very different reason: Most are engineering workhorses.

As Alice Maggio wrote for Gapers Block back in 2004:

We take them for granted. Some of us cross these bridges nearly every day and never stop to think about them. Yet Chicago has more movable bridges than any other city in the world, and the city is recognized as an international innovator in the engineering of bridges.

There's something hauntingly beautiful about Chicago's bridges in black and white. We've pulled together some photos from the Library of Congress that document the city's great bridges from 1900 to 1999.

Take a look below..

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  • Clark Street Bridge

    This undated photo shows Clark Street crossing the Chicago River.

  • Chicago & Alton Railroad Bridge

    This undated photo shows the Chicago & Alton railroad bridge crossing the south branch of the Chicago River with the bridge girders of the I-55/Stevenson Expressway in the foreground.

  • Baltimore & Ohio Railroad Bridge

    This undated photo shows the lift span of the Baltimore & Ohio railroad bridge crossing the south branch of the Chicago River. Learn more about this bridge <a href="http://www.historicbridges.org/bridges/browser/?bridgebrowser=illinois/sbrr2/">here</a>.

  • Baltimore & Ohio Railroad Bridge

    In this undated aerial view, the Baltimore & Ohio railroad bridge, spanning the south branch of the Chicago River, can be seen in the lift position.

  • Baltimore & Ohio Railroad Bridge

    Another view of the Baltimore & Ohio railroad bridge, in the lift position, spanning the south branch of the Chicago River.

  • Grand Avenue Bridge

    This undated photo shows structural detailing of the Grand Avenue Bridge spanning the north branch of the Chicago River. Learn more about the history of this bridge <a href="http://www.historicbridges.org/bridges/browser/?bridgebrowser=truss/grandave/">here</a>.

  • Adams Street Bridge

    This undated photo shows Adams Street crossing the south branch of the Chicago River.

  • Adams Street Looking North

    This undated photo taken from the Adams Street bridge looks north toward Monroe Street.

  • Jackson Boulevard

    This undated photo shows the Jackson Boulevard bridge spanning the south branch of the Chicago River.

  • Wabash Avenue

    This undated photo shows the Wabash Avenue bridge spanning the Chicago River.

  • Wabash Avenue Bridge

    This undated photo shows the main drive gear, rack and pinion and S-girder of the Wabash Avenue bridge spanning the Chicago River.

  • Wabash Avenue

    This undated photo shows the underside of the Wabash Avenue bridge spanning the Chicago River.

  • Lake Shore Drive

    This undated photo shows the bridge bringing Lake Shore Drive over the Chicago River in the lift position.

  • Clark Street

    This undated photo shows structural detailing on the Clark Street bridge spanning the Chicago River.

  • Michigan Avenue

    This undated photo shows the Michigan Avenue bridge spanning the Chicago River looking north toward the John Hancock tower.

  • Michigan Avenue

    This undated photo shows the trunnion girder and hinges on the Michigan Avenue bridge spanning the Chicago River

  • Franklin Street

    This undated photo shows structural detailing on the Franklin Street bridge spanning the Chicago River near the Merchandise Mart.

  • LaSalle Street Bridge

    This undated photo shows structural detailing on the LaSalle Street bridge spanning the Chicago River.

  • State Street Bridge

    This photo, taken sometime between 1900 and 1915, shows the steamboat United States, passing by the State Street bridge in the lift position.

  • Cermak Road

    This undated photo shows the Cermak Road bridge spanning the south branch of the Chicago River.

  • Cermak Road

    Another view of the Cermak Road bridge.

  • Roosevelt Road (12th Street) Bridge

    This photo, taken sometime between 1900 and 1910, shows the 12th Street bridge spanning the south branch of the Chicago River. The bridge predates one that was built in the late 1920s to carry today's Roosevelt Road over the river.

  • Division Street

    This undated photos shows the Division Street bridge over the north branch of the Chicago River.

  • North Avenue

    This 1999 photo shows the North Avenue bridge spanning the Chicago River.

  • St. Charles Air Line Bridge

    This undated photo shows the St. Charles Air Line Bridge over the south branch of the Chicago River.

  • Calumet River Bridges

    This undated photo shows the Pittsburgh, Fort Wayne & Chicago Railway bridge and the Chicago Skyway's Calumet River Bridge.