Just what is the National Endowment for the Humanities, and what do they do? Here to enlighten us will be former Iowa Congressman Jim Leach, President Obama's choice to head the Endowment.

Caverns carved from bedrock, tunnels under the lake, and more. Geoffrey Baer takes us deep underground for the first of a two-part series, Under Chicago. Information on the restoration of Buckingham Fountain

A magazine made for pets. We hear from the founder of Chicagoland Tails about how Chicago rates as a place for pets. PAWS Chicago Chicago Animal Shelter Alliance The Anti-Cruelty Society

No matter how well you think you know this city, there are always a few surprises around the corner. Geoffrey Baer finds some Chicago neighborhoods that are so hidden, they even take him by surprise.

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

It's not just about Sundays. In his new book Soldier Field: A Stadium and its City, author Liam Ford calls the story of Soldier Field the story of Chicago. He join us to talk about the book. Read an excerpt from the book

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

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