Noted photographer Larry Kanfer explores some historical barns across the landscape of Illinois. Kanfer.com: See more of Larry's work More info about the book, Barns of Illinois

The lakefront turns into one giant musical fiesta this weekend. We have a performance from a venerable local act taking part in the Viva! Chicago Latin Music Festival. Guest: Son del Viento Viva! Chicago Latin Music Festival

We talk to the director of a new documentary about the controversial Father Pfleger. Guest: Bob Hercules - director Additional Resources Gene Siskel Film Center

When he's not playing French horn with the Chicago Symphony Orchestra, he has a rather unusual hobby. We meet Dan Gingrick and his Monarch butterflies.

Are modern urban planners keeping with Daniel Burnham's original vision of the city? Do the Bears have realistic expectations for Jay Cutler? A professor of strategy at Lake Forest Graduate School of Management tells us how to make goals and get results. Guest: Rich Horwath - Lake Forest Graduate School of Management

The decision on the host city for the 2016 Olympics is a little over a month away. We find out the latest on the city's bid progress from Olympic insiders, including Chicago 2016 bid chairman and CEO Pat Ryan. We also find out if a dispute between the USOC and the IOC may have put Chicago's bid in jeopardy. Guests:

We catch up with the Puppet Bike, a wandering puppet show that travels on the back of a bicycle through the streets of Chicago. Puppetbike.com WBEZ: Traveling with the puppet bike (06/05/09) Time Out Chicago: Puppet pedaler

We hear what you have to say about some of our recent stories when we read our viewer mail.

For the rest of the summer we'll be replaying the best of John Callaway's interviews over the years, tonight we take a look back at a 2006 conversation with Broadway star Elaine Stritch. Guest: Elaine Stritch

A destructive species of fish has been spotted in the waters close to Chicago. Rich Samuels tells us why the Asian carp poses a great threat to commercial and recreational fishing and how the region is working to keep the fish out of Lake Michigan. And we hear from the acting president of the Alliance for the Great Lakes about other possible permanent solutions to the Asian Carp problem. Guest:

The newest member of Chicago's public art family is a reflection of the city's earliest inhabitants. We learn how the mural on Foster Avenue was created. Chicago Public Art Group Schudule of Aug. 22 mural dedication (PDF)

We find out about a peaceful meadow that was once a POW camp in tonight's edition of Ask Geoffrey.

We take a look back at another classic John Callaway interview -- his July 2006 conversation with Broadway star Elaine Stritch. Elaine Stritch's entry in the Internet Broadway Database

No need to run away and join the circus when you can spend the night with one instead. Time Out Chicago is here with suggestions for the weekend. Guest:

The cash-strapped Robbins Public Library may have to close at the end of the month. Rich Samuels tells us who will be hurt most. Encyclopedia of Chicago: Robbins, Ill.

It's been an exciting summer for online Chicago news as the Chicago Tribune launches ChicagoNow blogs and Everyblock.com is bought by MSNBC. Northwestern University's Kristian Hammond joins us for an update on local online news. Guest: