What distinguished businessman transformed a frog pond into a castle? We find out in tonight's edition of Ask Geoffrey. "Illinois: The Castle" -- Time Magazine Patterson McCormick Mansion Peshtigo Wisconsin Fire

Banned in Chicago, racing pigeons have flown the coop and landed in the suburbs. We meet some of the bird lovers who keep the sport alive and flying high.

Madeline Nusser of Time Out Chicago joins us with bone-chilling pre-Halloween recommendations sure to kick-start your adrenaline. "Fear" -- The Neo-Futurists Music Box Massacre 5 The Fear Haunted House at Navy Pier Scarecrow Festival

The giant heart is back at the Museum of Science and Industry, and it's all dressed up for the 21st century. It's part of a new $21 million exhibit that is all about..."You!" You! The Experience

Groucho, Chico and Harpo are back in town. We take a look at Goodman Theatre's new staging of the Marx Brothers classic Animal Crackers.

The author of a new book that chronicles Chicago's rich history joins us to discuss our ever-evolving city. Chicago: A Biography

Conductor Kirk Muspratt tells us about the New Philharmonic's upcoming Slavic Strings performances, and nationally acclaimed cellist Joshua Roman performs in the studio.

ESPN reporter Erin Andrews's alleged stalker is now under house arrest for using his cell phone to tape her in her hotel room without her knowledge. The case raises serious questions about hotel security for travelers. What should you know -- and do -- next time you're staying in a hotel? A hospitality industry insider joins us with some suggestions. Tips for travelers from the American Hotel and Lodging Association

Twelve years ago he earned a “genius” grant for his creative vision. Since then, Kerry James Marshall has produced waves of art for an international audience, all from his cluttered studio in the historic Bronzeville neighborhood.

We meet the man filling a 9-year vacancy as the Chicago Tribune's new editorial cartoonist. Scott Stantis cartoons

Egyptian gods, superheroes, wild animals, and more. Geoffrey Baer shows us some amazing -- and easily overlooked -- ornamentation hiding in plain sight on the walls of Chicago's old buildings. Watch the extended video & slideshow

The Bears exploded for 48 points and trounced division rival Detroit. We recap all the action with former Bear great Tom Thayer.

David Letterman's bombshell announcement that he was being blackmailed for having sex with some of his employees has rocked the late night landscape. We talk to sex therapist Laura Berman about her latest book and the Letterman revelations.

A rough and tumble game from the 1970s is making a comeback. Women's roller derby is the subject of a new movie, and it's the real-life passion of the athletes on a local team. We introduce you to Chicago's Windy City Rollers. "Whip It"

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

President Obama was a gracious loser today back at the White House after a whirlwind trip to Copenhagen on behalf of Chicago 2016. We talk with a representative of Chicago's bid committee about what went wrong, and what's next.