It’s Friday morning in Chicago, and we step off a green line ‘L’ train at 35th-Bronzeville-IIT station. This is the oldest urban transit line in the city of Chicago: parts of the entirely elevated line date back to 1892, when the route was constructed for the World’s Columbian Exhibition. Like all suburban ‘L’ stations, we find ourselves standing a storey and a half above street level, on a narrow island platform of untreated wooden planks, barely shaded from the sun and rain by a small canopy. Between us and the large drop to the pavement are the two train tracks, one either side of the platform. Prominent signs remind us that they are electrified.
Chicago’s ‘L’ trains are a destination in themselves: the ideal vehicle for tourists to explore and see the city. Although a few lines dip beneath the ground through the downtown core, most pass through the city centre on the ‘loop’, a circuit of tracks that connect a number of lines to the suburbs by forming a closed loop above the streets of the city centre which has come to name the downtown’s innermost core. Once outside the city centre, the tracks stay above ground level or in the medians of suburban freeways. Far more exciting than an underground network, the ‘L’ is your budget city tour – a seven day pass for train and bus is just $20, and regular ‘L’ service connects Chicago’s two airports to the city.
We’re in southern Chicago on the edge of the historic Bronzeville district to visit the Illinois Institute of Technology. This university campus, which has its principal campus here around 35th street, is home to no less than eighteen buildings designed by the architect Mies van der Rohe, who spent much of his life teaching architecture at IIT. Regardless of whether you find Mies’ architecture cold and emotionless, or clean and uplifting, a new tour programme offered by the Illinois Institute of Technology and the university’s Mies van der Rohe Society is an unmissable part of any visit to Chicago’s architectural high lights. For just $5 a person, you can choose to follow a self-directed iPod tour or be shown around the campus by a student (tours depart twice daily, Monday to Saturday at 10h00 and 13h00). Seeing that one such architecture student was waiting near-by the office that offers the tours, we gladly accepted the latter. The tours start at IIT’s most striking new building: the campus and student centre designed by Dutchman Rem Koolhass. This bizarre and colourful building slides and folds itself beneath the elevated tracks of the green line, and encloses them with a corrugated steel tube that was originally designed to damped the sound and vibrations of the trains passing over the tracks. You can visit the building yourself to see if this grand design works, but it was amusing to compare it to the adjacent student accommodation blocks designed by Helmut Jahn. This calmer and less ostentatious building forms a permeable wall between some of the campus’ open spaces and the passing trains, and it deals with the associated noise much more prosaically: with triple glazed windows mounted in insulated frames.
The landmark architectural feature of the campus is, however, van der Rohe’s Crown Hall building, the huge floating steel and glass block that was built to house the university’s architecture department. The department has now grown and spilt out into neighbouring buildings, but following a multi-million dollar refurbishment in 2006, the Crown Hall remains at the heart of the faculty of architecture school. Our guide confesses that while the building may be worshiped by fans of the Modernist movement in architecture, its refurbishment was well overdue. The black steel frame had begun to rust badly, and with no coherent shading inside the building, it had been likened to a green house in summer and a refrigerator in winter. Double height glass windows enclose the main floor of the building, used as a studio space for undergraduate students. We were there a week before the start of term, and the vast space was silent, with small wooden and cardboard models on white workshop tables reminiscing of last term’s projects.
Some visitors may find the building familiar. That could be because you’ve been in one just like it before. Mies van der Rohe refined many architectural and engineering techniques while he was teaching and building at IIT, and the Crown Hall is considered the peak of van der Rohe’s exploration of the plan libre: spaces that were entirely open and undivided, supposedly allowing for the space to adapt to any use at any time in the future. It’s a romantic idea that this vast open plan studio space could be used in that way, for students to occupy as they wish: design studio one day, lecture hall the next, play room for softball after hours when the security staff aren’t around.
The dream is broken very rapidly though. Two ‘floating’ staircases descend from the open plan studio to the basement level; these are proudly explained and shown off by our guide, because they make no contact with the building at any point other than the two landings – but are designed to hover so close to the adjacent walls that this detail seems wasted. It was here, rather than upstairs, that I understood Mies van der Rohe’s plan libre. For in the hushed basement we found the partitioned offices, ventilated workshops and subdued library. Photographed and reproduced in a thousand books, magazines and journals the world over, Mies van der Rohe fooled the world into thinking that a department of architecture was the ideal client for an open plan pavilion of steel and glass. In fact, the plan libre is a con: van der Rohe just knew to sweep all the messy, noisy and compartmentalised bits of the building into the basement, out of sight of passing visitors and distant architectural admirers.