The Crown Hall, Chicago,IL.

Crown Hall was a project of Ludwig Mies van der Rohe, it is situated in Chicago, Illinois. It is an architectural school made of steel and glass.

One of Mies van der Rohe's last building erected on the Illinois Institute of Technology campus is Crown Hall, a superb example of his clear span designs. The roof is suspended from the underside of four steel plate girders which in turn are carried by eight exterior steel columns. These columns are spaced 60 feet apart with the roof cantilevered 20 feet at each end....Crown Hall, in which architecture, city planning, and design are taught, has a symmetrical plan about its short axis. Free-standing partitions at the height of the window muntins partially subdivide the space. Only two enclosed service ducts interrupt the ceiling. A pair of interior stairways leads to a basement level used for workshops, offices, toilet rooms, and mechanical equipment. ...Natural ventilation is provided by louvers at floor level.

"One of Mies van der Rohe's last building erected on the Illinois Institute of Technology campus is Crown Hall, a superb example of his clear span designs. The roof is suspended from the underside of four steel plate girders which in turn are carried by eight exterior steel columns. These columns are spaced 60 feet apart with the roof cantilevered 20 feet at each end....Crown Hall, in which architecture, city planning, and design are taught, has a symmetrical plan about its short axis. Free-standing partitions at the height of the window muntins partially subdivide the space. Only two enclosed service ducts interrupt the ceiling. A pair of interior stairways leads to a basement level used for workshops, offices, toilet rooms, and mechanical equipment. ...Natural ventilation is provided by louvers at floor level.

The Creator's Words
"The essence of space is not determined by the mere presence of limiting surfaces but by the spiritual principle of this limitation. The true task of architecture is to let the structure articulate the space; it is not the building that is the work of art but space."
— Mies van der Rohe. from Mies van der Rohe. Less is More. p86.