Rookery Building is a notable office building in The Loop, Chicago, completed in 1888 and designed by Daniel Burnham and John Wellborn Root. Celebrated for its pioneering foundation and steel-frame construction, the building features a stunning light-filled interior court, which is open to the public, an iconic spiraling iron staircase and ornate decorative details. Over the years, architects such as Frank Lloyd Wright and William E Drummond have renovated the interior, adding Prairie-style chandeliers, Art Deco elements, and grand geometric urns, making the Rookery a landmark of Chicago architecture and design. - AsNotedIn