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Historian David McCullough shares some of the most memorable and inspirational places he's visited as a traveler and researcher.

Historian David McCullough introduces Rick to some of the most influential "Americans in Paris" of the 19th century, detailed in his book "The Greater Journey."

Beloved historian David McCullough, whose works include a book about the Wright Brothers, shares some insights on this extraordinary pair and the impact of their travels.

Mathew Prichard talks about the world travels of his famous grandmother, mystery writer Agatha Christie.

Rick chats with astronaut Chris Hadfield about what he’s experienced and learned as a commander of multiple missions into outer space.

Actor Joanna Lumley fell in love with Greece decades ago, when she was just a teenager on her first visit. She chats with Rick about her latest Greek travels and her enduring passion for the resilient Greek people and their culture.

Actor and author Madhur Jaffrey shares childhood memories of India.

Actor Joanna Lumley tells Rick about her trip to Bhutan and her work on behalf of the Ghurkas of Nepal.

Author Terry Tempest Williams tells Rick how she found solace and hope in Rwanda in the wake of 9/11.

Oscar-winning producer Grant Heslov and author Robert Edsel join Rick to talk about the film, "The Monuments Men," and the ongoing effort to restore works of art stolen during World War II.

Actor and cookbook author Madhur Jaffrey examines the passion for Indian food in Britain, where the local pub is now serving curry along with the fish and chips.

Actor Joanna Lumley is best known for her role as Patsy in the British TV comedy, "Absolutely Fabulous," but she's also an intreprid traveler who traced the source of the Nile.

Mountain climbing legend Ed Viesturs tells Rick about his adventures climbing the world's highest peaks.

Martin Clunes, star of the popular British series "Doc Martin," tells Rick what it's like to film his show on location in Cornwall.

Astronaut Cady Coleman takes Rick on a virtual tour of her one-time home: The International Space Station.