Over the course of five decades, Vivian Maier documented city life by taking more than 100,000 photographs, many of them in Chicago. The now-famous street photographer would have celebrated her 90th birthday on Monday. We revisit our story that introduced “Chicago Tonight” viewers to her incredible images.

Attendance was down 30 percent last year at the museum, largely due to its hugely popular retrospective of David Bowie's career–the museum's most-attended exhibition ever. Most other Chicago museums fared better, according to 2015 attendance data compiled by Museums in the Park.

Joel Weisman and his panel discuss a possible breakthrough in contract negotiations between the Chicago Teachers Union and Chicago Public Schools, Gov. Bruce Rauner's State of the State address and the 30th anniversary of the Bears Super Bowl win.

Earlier this evening, the union announced a possible breakthrough in contract talks after the day's bargaining session wrapped up.

It’s 2016 and we’re still three metaphorical minutes away from global doom. The Bulletin of the Atomic Scientists say global warming and nuclear weapon proliferation pose serious threats to mankind.

Can technology change how we learn? Former hedge fund analyst Sal Khan thinks so. His new approach to learning involves "hustle" and "flipping the classroom." Learn more from the founder of the free, non-profit online learning website, Khan Academy. 

Mayor Rahm Emanuel joins us to talk about the gridlock in Springfield, the financial crisis at Chicago Public Schools and police accountability. Watch the full discussion now.

Take a dip in Lake Michigan with the Lakeview Polar Bear Club, mellow out to the sounds of trumpeter Marquis Hill, sip wine and winter beer and more.

In the Loop, a photographic feast is now being served. To celebrate its 40th anniversary, the Museum of Contemporary Photography combed its archives to find the pictures that best reflect the character of the museum. What they found were dramatic images from the 19th century to the 21st.

Hear what viewers had to say about Gov. Bruce Rauner's State of the State address when we read feedback from the "Chicago Tonight" website, and our Facebook and Twitter pages.

The Art Institute's Head Curator of Contemporary Art James Rondeau will officially take over as president of the institution, the museum announced Thursday. The 46-year-old succeeds Douglas Druick, the museum's president since 2011 who announced his retirement in October.

Chicago animal shelters like PAWS are still coping with the spread of a new, highly contagious strain of canine influenza. In the U.S., the outbreak of the H3N2 dog flu virus was first found in Chicago last year. It's now spreading to western states.

In a roughly 30-minute speech on Wednesday, Gov. Bruce Rauner lightly mentioned the ongoing budget impasse and did not say the phrase “Turnaround agenda" once. Instead, the governor struck tones of reconciliation on issues such as pension reform and education funding.