Tuesday marks the city’s 188th birthday. Here's a look back at some Chicago history you need to know.

The upgrades at North America’s longest-running outdoor music festival will take place in phases over the next few years. Everything is expected to be renewed and enhanced by the 2029 season, when Ravinia celebrates its 125th anniversary.

The Little Village Arch was built in 1990 by Mexican American Vietnam War veterans Ronald Baltierra and David Ramirez and was designed by Mexican architect Adrián Lozan. The Chicago Department of Transportation undertook a $1.25 million project to restore the archway following its designation as an official city landmark.

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.

The Century and Consumers Buildings – which date to 1916 and 1913, respectively – have been empty since they were purchased by the government in 2005 through the use of eminent domain.

An expansion of O’Hare International Airport’s Concourse C would add more gates and serve both international and domestic passengers, according to elected officials who unveiled design renderings Tuesday.

"The role of the journalist has never been more important, and the ideals of a free press never more consequential than it is today," architect John Ronan said.

Utilizing footage captured by a drone, flight members swoop through iconic landmarks in seats engineered to feel every dip and dive of the ride, just as if you were on a rollercoaster.

Since no one program could contain every beautiful place in town, its high time for the sequel. “The Most Beautiful Places in Chicago 2” debuted Monday on WTTW.

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.

The Century and Consumers buildings, long championed by local preservationists, have been jointly designated one of the 11 Most Endangered Historic Places in the U.S. in an annual list released Tuesday by the National Trust for Historic Preservation.

“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.

In a new WTTW special, Geoffrey Baer takes viewers on a tour of some of Chicago’s most beautiful places. Some may be familiar, but others less so.

The preservation community is coming around to considering the 1970s and 1980s to be historic, ushering in a new wave of buildings up for landmark consideration.

Chicagoans not familiar with the name Carol Ross Barney almost certainly have experienced some of her work. From the Chicago Riverwalk to CTA stations, her designs are part of everyday life in the city. 

What do you get when you put two of Chicago’s preeminent architecture critics together? A thought-provoking book about the city’s storied architecture.