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The Rookery
One of the earliest remaining skyscrapers, this 1888 Chicago landmark combines traditional wall-bearing and newer steel frame construction.
The latter made it possible for its architects, Burnham and Root, to
design an open interior, with office spaces set around a central light
well.

The Rookery
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Auditorium Theatre
Built
by Adler and Sullivan in 1889, the ornate Auditorium also originally
contained a hotel and office building and had one of the first public
air-conditioning systems. The revamped 4,000-seat theater boasts
near-perfect acoustics.-
50 E.Congress Pkwy
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For tours call 312 431 2354

Art glass, Auditorium Theatre
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Monadnock Building
Constructed
in two stages, this Loop edifice represents the evolution of skyscraper
architecture. The northern half was built in 1891 using solely
wall-bearing construction, while the southern half was built two years
later and incorporated the then emerging steel-frame technology that is
still used today .

Detail of staircase, Monadnock Building
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Reliance Building
The
steel skeleton on this 1895-built skyscraper allowed it to be wrapped
in glass. It offers an excellent example of the Chicago window, which is
characterized by a bay window placed between two narrow, double-hung
windows – a signature feature of the Chicago school of architecture.
Occupied by the Hotel Burnham the interior sports replicas of original features . -
860–80 N. Lakeshore Drive
You
might think these two highrise apartment buildings (1949–51) look like
many others along this tony strip. Actually, the others look like these.
German architect Mies van der Rohe perfected the “less is more”
approach which so many other architects went on to copy.

860–80 N. Lakeshore Drive
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Marina City
With
its twin cylindrical structures (1959–64) on the Chicago River, Marina
City is a “city within a city,” containing offices, residences, a
theater, a grocery store, and more. The apartments start on the 21st
floor, affording spectacular views, but their slice-of-pie shape creates
some interior decorating challenges.
