A "who's who" of buildings has been announced for the annual Open House Chicago "urban exploration" two-day festival, set for Oct. 19-20.

Everyone in Chicago knows the work of architect Benjamin Marshall, even if his name doesn’t carry the weight of Louis Sullivan or Frank Lloyd Wright. It’s hard to imagine the city without Marshall’s enduring contributions — the South Shore Cultural Center, the Drake Hotel and many other historic buildings.

Preservation Chicago announced its annual "7 Most Endangered" list Wednesday.

Chicago is a city of firsts — everything from the first Ferris wheel to the first brownie and the world’s very first skyscraper. WTTW News explains.

Graceland Cemetery has debuted a new entryway designed to draw people in rather than keep people out, embracing its status as one of Chicago’s great green spaces.

Sterling Bay’s first completed structure at its $6 billion Lincoln Yards riverfront development was constructed with bird-friendly glass. The use of the material is one of several features intended to minimize the sorts of deadly bird collisions Chicago just witnessed in record numbers.

Despite knowing about the perils of global warming for decades, many cities are proving to be woefully unprepared. Many solutions are based on time-tested design principles. Here are five things cities are doing right now to combat rising temperatures. 

The Commission on Chicago Landmarks voted unanimously Thursday to grant preliminary landmark status to a pair of early 20th century skyscrapers slated for demolition by the federal government.

The move is the latest development in a fight over historic preservation and courthouse security. The government has also been pushing to demolish the Century and Consumers buildings, two early 20th century skyscrapers located to the east of the Dirksen Federal Building.

“The Warehouse should be protected as a symbol of the rich history of Chicago’s LBGTQ+ African-American community, the incredible story of house music and the groundbreaking impact that Frankie Knuckles had on the sound of modern music today,” Preservation Chicago said.

There’s more to Chicago’s architectural legacy than its gleaming downtown skyline. All throughout the city, there are buildings that inspire — you just have to know where to look.

The fate of a pair of endangered 20th century State Street skyscrapers remains up in the air after the Commission on Chicago Landmarks punted during its monthly meeting Thursday when it came time to decide whether to afford the Century and Consumers buildings landmark status.

The Hetherington family of architectural designers worked on more than 100 homes in Beverly, Morgan Park and Mt. Greenwood. A new tour is highlighting some of the homes and some of the fascinating residents.

The 1913 Consumers Building at 202 South State St., and its neighbor, the 1915 Century Building, were designed by two of Chicago’s most storied architecture firms. But multiple federal agencies have concluded the towers’ locations just east of the Dirksen Federal Building render the country’s largest federal courthouse vulnerable to attack and pose too much of a security risk to keep.

"Energy Revolution," a new exhibit at the Chicago Architecture Center, looks at climate change through the lens of architecture, with an emphasis on energy consumption. When it comes to energy efficient insulation, less is not more.

The building, 410 S. Michigan Ave., opened as the Studebaker Building in 1885 as a showroom and assembly plant for carriages. Thirteen years later, it was remodeled and repurposed as the Fine Arts Building.