The famed firm of Burnham and Root built the Rookery in 1888. Frank Lloyd Wright remodeled the atrium 19 years later. It's renowned because while it looks hulking and fortresslike outside, it’s light and airy inside. You can walk in and look around for free. The Frank Lloyd Wright Preservation Trust has an outpost/shop in the lobby and offers lunchtime tours at noon weekdays.
The walkabouts cost $5, except on Wednesday when they're $10 and include access to the Burnham Library. Oh, the name? It comes from the pigeons that used to roost here.
