This icon of Chicago's financial district is an indisputable architectural masterpiece. Designed by Burnham and Root and completed in 1888, its stunning skylit lobby was renovated by Frank Lloyd Wright in 1905. It has been meticulously updated and maintained since that date. Today, the Rookery is one of the most-recognized buildings in all of Chicago. It was designated a Chicago Landmark in 1972 after being added to the National Register of Historic Places in 1970.