This week, the Peter Greenberg Worldwide Radio Show broadcasts from the Hard Rock Hotel in San Diego, where Peter is speaking at the travel and adventure show at the San Diego Convention Center. Joining Peter is Leigh Gallagher from Fortune magazine on her new book about Airbnb and how the founders went—literally—from an air mattress on the floor of their San Francisco apartment to a $30 billion company. Mike Boyd reports on the continued unintended consequences of President Trump’s executive order and so-called travel ban. Troy Johnson from San Diego Magazine details the secrets of Gaslamp—the Hard Rock is located at the entrance to this historic district. More San Diegans stop by, such as Terry Brennan, Curator and Director of Restorations at the San Diego Air & Space Museum, who discusses the museum’s latest exhibits, the Spitfire Mk. XVI—a Navy F6F Hellcat and an A-4 Skyhawk jet—and how San Diego was truly at the forefront of aviation history. Gabe Selak, History Ambassador for the San Diego History Center, describes the importance of San Diego’s preserved architecture and the variety of styles in the city. He also talks about the history of the San Diego Zoo, which is celebrating its 100th anniversary this year. Matt Greene, General Manager of the Hard Rock Hotel San Diego, shares why he’s returned to the Hard Rock Hotel San Diego—celebrating its tenth anniversary—and all the things he could not leave behind. There’s all of that and more when the Peter Greenberg Worldwide Radio Show broadcasts from the Hard Rock Hotel San Diego.

Have a travel question? Ask Peter Greenberg. Call 888-88-PETER (888-88-3837), email him at peter@petergreenberg.com, or tweet your questions to @PeterSGreenberg (include #AskPeter).

Check out this week’s guest list, listen to the latest all-local podcast, and stream the full show below. For the most up-to-date information on travel in a 40-minute podcast, check out Travel Today with Peter Greenberg available on iTunes and Stitcher. New podcasts are available every week! Click on the button to hear the latest.