For some postmodern fun, check out the twin ‘corncob’ towers of the 1962 mixed-use Marina City. Designed by Bertrand Goldberg, it has become an iconic part of the Chicago skyline, showing up on the cover of the Wilco CD Yankee Hotel Foxtrot . The condos that top the spiraling parking garages are especially picturesque at Christmas, when owners decorate the balconies with lights.