View north along shore of Lake Michigan from John Hancock Center, Chicago, Illinois, United States of America (U.S.A.), North America

City skyline, Chicago, Illinois, United States of America, North America

City skyline and Lake Michigan, Chicago, Illinois, United States of America, North America

The Hancock Tower and city skyline, Chicago, Illinois, United States of America, North America

Art nouveau ornamentation on Carson Pirie Scott Building, Chicago, Illinois, United States of America, North America

Skyscrapers follow the curve of the Chicago River, Chicago, Illinois, United States of America, North America

Cityscape at dusk, high angle view of the Loop district, Chicago, Illinois, United States of America, North America

Metra Train passing pedestrians at an open railroad crossing, Downtown, Chicago, Illinois, United States of America, North America

Skyscrapers including the Aon Center viewed from Millennium Park, Chicago, Illinois, United States of America, North America

View of The Wrigley Building, Chicago River and watertaxi from DuSable Bridge, Chicago, Illinois, United States of America, North America

Early morning view of The Wrigley Building and Stars and Stripes US flag on DuSable Bridge, Chicago, Illinois, United States of America, North America

View of Wrigley Building from rooftop terrace, Downtown Chicago, Illinois, United States of America, North America

View of city skyscrapers, Millennium Monument in Wrigley Square, Millennium Park, Downtown Chicago, Illinois, United States of America, North America

The Magnificent Mile, North Michigan Avenue, Chicago's premier shopping street, Chicago, Illinois

Downtown skyline and river cruise boat on the Chicago River near the Michigan Avenue Bridge, Chicago, Illinois, United States of America, North America

Cloud Gate sculpture in Millennium Park, Chicago, Illinois, United States of America, North America

View of city skyscrapers from Millennium Park, Downtown Chicago, Illinois, United States of America, North America

The BP Pedestrian Bridge designed by Frank Gehry, Grant Park, Chicago, Illinois, United States of America, North America

High angle view of Chicago skyline and suburbs looking south in the late afternoon, Chicago, Illinois, United States of America, North America .

View of city skyscrapers and railway, Downtown Chicago, Illinois, United States of America, North America

Ferris Wheel at Navy Pier, Chicago, Illinois, United States of America, North America

High angle view of Lake Michigan from the Hancock Center, Navy Pier and Milton Lee Olive Park in the centre, Chicago, Illinois, United States of America, North America

Chicago Theatre, North State Street, Chicago, Illinois, United States of America, North America

Early morning view of skyscrapers and traffic on DuSable Bridge, Chicago, Illinois, United States of America, North America

View of The Wrigley Building, Chicago River and watertaxi from DuSable Bridge, Chicago, Illinois, United States of America, North America

Downtown city skyline, Chicago, Illinois, United States of America, North America

Bas relief sculpture depicting the city's early history, Michigan Avenue Bridge, Chicago, Illinois, United States of America, North America

Cloud Gate sculpture in Millennium Park, Chicago, Illinois, United States of America, North America

Buildings along Wacker Drive and the Chicago River at dusk, Marina City centre, Trump Tower on right, Chicago, Illinois, United States of America, North America

Downtown and Lake Michigan, Chicago, Illinois, United States of America, North America

Tall buildings including the Willis Tower, formerly the Sears Tower from Grant Park, Chicago, Illinois, United States of America, North America

Chicago skyline and Lake Michigan at dusk with the Willis Tower, formerly the Sears Tower, on the left, Chicago, Illinois, United States of America, North America

Old clock on the corner of 33 East Wacker Drive, formerly known as the Jewelery Building, Marina City in the background, Chicago, Illinois, United States of America, North America

The Adler Planetarium sundial with Lake Michigan and city skyline beyond, Chicago, Illinois, United States of America, North America

Museum Campus, Grant Park and the South Loop city skyline, Chicago, Illinois, United States of America, North America

The Buckingham Fountain and city skyline, Chicago, Illinois, United States of America, North America

Cityscape from the BP Pedestrian Bridge designed by Frank Gehry which links Grant Park and Millennium Park, Chicago, Illinois, United States of America, North America

Towers along the Chicago River towards Lake Michigan, Chicago, Illinois, United States of America, North America

Tribune Tower, the 1920s Gothic skyscraper and home to the Chicago Tribune in downtown Chicago, and Hotel Intercontinental behind, Chicago, Illinois, USA, North America

An El train on the Elevated train system crossing Wells Street Bridge, Chicago, Illinois, United States of America, North America

Chicago skyline and Lake Michigan at dusk with the Willis Tower, formerly the Sears Tower, on the left, Chicago, Illinois, United States of America, North America

View of Water Taxi on Chicago River from rooftop terrace, Downtown Chicago, Illinois, United States of America, North America

Michigan Avenue or The Magnificent Mile, famous for its shopping, Chicago, Illinois, USA

Buckingham Fountain in Grant Park with Sears Tower and South Loop skyline beyond, Chicago, Illinois, United States of America, North America

Bridges raised to allow sailboats through, Chicago River, Chicago, Illinois, United States of America, North America

View of trail lights and skyscrapers on Michigan Avenue at dusk, Chicago, Illinois, United States of America, North America

The House of Blues, live music venue, Marina City, Chicago, Illinois, United States of America, North America

North Michigan Avenue and Chicago Avenue signpost, The Magnificent Mile, Chicago, Illinois, United States of America, North America

The ferris wheel on Navy Pier, Chicago, Illinois, United States of America, North America

John Hancock Center, Chicago, Illinois, United States of America, North America

View of Irv Kupcinet (Mr. Chicago) statue, Chicago, Illinois, United States of America, North America

View of the Buckingham Fountain and Chicago skyline at dusk, Chicago, Illinois, United States of America, North America

View of Chicago from the Sears Tower Sky Deck, Chicago, Illinois, USA

Art nouveau ornamentation on Carson Pirie Scott Building, Chicago, Illinois, United States of America, North America

Metra Train passing pedestrians at an open railroad crossing, Downtown, Chicago, Illinois, United States of America, North America

Robert Morris, George Washington, Haym Salomon Memorial statue stands by the Chicago River, Chicago, Illinois, United States of America, North America

View of Irv Kupcinet (Mr Chicago) statue, Chicago, Illinois, United States of America, North America

View of Chicago from the Sears Tower Sky Deck, Chicago, Illinois, USA

Cloud Gate sculpture in Millennium Park, Chicago, Illinois, United States of America, North America

Cyclist by Lake Michigan shore, Gold Coast district, Chicago, Illinois, United States of America, North America

The Chicago Theater sign has become an iconic symbol of the city, Chicago, Illinois, United States of America, North America

Looking south down Rush and Wabash Streets in the Near North of downtown Chicago, Illinois, USA

Aerial view looking north up Lakeshore Drive to the Gold Coast district, Chicago, Illinois United States of America, North America

Tribune Tower, Gothic architecture, North Michigan Avenue, the Magnificent Mile, Chicago, Illinois, United States of America, North America

Trump Tower and the Wrigley Building by the Chicago River, Chicago, Illinois, United States of America, North America

John G. Shedd Aquarium, Chicago, Illinois, United States of America, North America

Close up of Chicago Theatre marquee, Chicgo, Illinois, United States of America, North America

View of flower bed and skyscrapers on North Michigan Avenue, Chicago, Illinois, United States of America, North America

Tall buildings on North Michigan Avenue reflecting in the Cloud Gate steel sculpture by Anish Kapoor, Millennium Park, Chicago, Illinois, United States of America, North America

The unusual Aqua Tower designed by Jeanne Gang, Chicago, Illinois, United States of America, North America

The Chicago Theatre on North State Street, Chicago, Illinois, United States of America, North America

Cloud Gate sculpture in Millennium Park, Chicago, Illinois, United States of America, North America

An El train on the Elevated train system crossing Wells Street Bridge, Chicago, Illinois, United States of America, North America

Metra rail system, station sign in the style of the Paris Metro, Chicago, Illinois, United States of America, North America

The Wrigley Building and Tribune Tower, North Michigan Avenue, the Magnificent Mile, Chicago, Illinois, United States of America, North America

Millennium Park, The Cloud Gate steel sculpture by Anish Kapoor, Chicago, Illinois, United States of America, North America

Chicago skyline and Lake Michigan, Chicago, Illinois, United States of America, North America

South Michigan Avenue, Chicago, Illinois, United States of America, North America

Close-up of Marina City's twin towers, Chicago, Illinois, United States of America, North America

Cyclists riding along Lake Michigan shore with the Chicago skyline beyond, Chicago, Illinois, United States of America, North America

Chicago Riverwalk on West Wacker Drive with Trump Tower, Wrigley Building and Tribune Tower, Chicago, Illinois, United States of America, North America

Jay Pritzker Pavilion designed by Frank Gehry, Millennium Park, Chicago, Illinois, United States of America, North America

Towers along the Chicago River towards Lake Michigan, Chicago, Illinois, United States of America, North America

The Chicago Theatre on North State Street, Chicago, Illinois, United States of America, North America

Lake Michigan and city skyline, Chicago, Illinois, United States of America, North America

Chicago River with Trump Tower and Wrigley Building, Chicago, Illinois, United States of America, North America

Sears Tower and skyline, Chicago, Illinois, United States of America, North America

The Chicago Theatre, Theatre District, Chicago, Illinois, United States of America, North America

Navy Pier, Lake Michigan, Chicago, Illinois, United States of America, North America

The Wrigley Building, Chicago, Illinois, United States of America, North America

Metra rail system, station sign in the style of the Paris Metro, Chicago, Illinois, United States of America, North America

Close-up of Marina City's twin towers, Chicago, Illinois, United States of America, North America

Millennium Monument, Millennium Park, Chicago, Illinois, United States of America, North America

Millennium Park, The Cloud Gate steel sculpture by Anish Kapoor, Chicago, Illinois, United States of America, North America

Chicago cityscape from Lake Michigan, the Adler Planetarium Sundial in the foreground with Willis Tower, formerly the Sears Tower beyond, Chicago, Illinois, United States of America, North America

Chicago skyline and Lake Michigan with the Willis Tower, formerly the Sears Tower on the left, Chicago, Illinois, United States of America, North America

Buckingham Fountain, Grant Park, Chicago, Illinois, United States of America, North America

Chicago skyline and Navy Pier from Lake Michigan, Chicago, Illinois, United States of America, North America

Buckingham fountain, Chicago, Illinois, United States of America, North America

View of Chicago skyline from hotel window on Michigan Avenue at dusk, Chicago, Illinois, United States of America, North America