The Chicago Architecture Foundation

A local tour guide is offering an outdoor winter tour of the Loop, but not many Chicagoans are biting. 

Hubbard Street Dance, the Architecture Foundation and the Botanic Garden are among those taking part.

The rooftop Airstream is among the Lincoln Square/Ravenswood gems included in Open House Chicago.

The Chicago Architecture Foundation's annual festival opens the doors of the city's structural gems.

These architectural gems will be open to the public this weekend.

The Chicago Architecture Foundation's Open House is set for Saturday and Sunday.

Future uses for the old hospital site could include residential lofts, a hotel and a business incubator.

Employees who worked at the old Cook County Hospital want to see a medical museum installed at the site.

The annual Bridgeport festival highlights "creative placemaking and tactical urbanism" in the city.

The Chicago Architecture Foundation is soliciting ideas for places to include in Open House Chicago 2014.

Twelve buildings in Lincoln Park are opening their doors through Sunday for Open House Chicago.

Five buildings in the  Prairie Avenue Historic District are opening their doors through Sunday.

KAM Isaiah Israel sits across the street from President Barack Obama's Hyde Park home.

The free event invites curiosity seekers to wander into interesting city buildings.

Margaret Hicks takes tourists and Chicagoans alike on tours of the Loop's underground walkway.