Will Allen tells us how he feeds 10,000 people a year from a three-acre farm in the poorest part of Milwaukee. We talk to Amy Bentley, author of Inventing Baby Food. Adam Leith Gollner explored Abruzzo, Italy, which he says is "hidden in plain sight," and Barbara Mazur discovered The Vilna Vegetarian Cookbook in the rare book room at YIVO Institute for Jewish Research. The Sterns share their soul food picks -- in Orlando, Florida.

Broadcast dates for this episode:

• July 17, 2015 (originally aired)
• July 8, 2016 (rebroadcast)