Journalist Eliot Stein takes us along on the unique adventure of kayaking the perimeter of Manhattan Island and observes some of the pockets of nature that persist within New York's concrete jungle. Then a midwestern author shares his lifelong passion for the Mississippi River and delves into the recreational, ecological, and spiritual facets of America's mighty waterway. And TV host Samantha Brown tells Rick how she keeps herself from stressing out over what could go wrong in her frequent travels.

Two prominent Canadian authors share their perspective on today's strained political relationship between the US and its northern neighbor. They reflect on their country's geography, diversity, strength, and identity, and consider the history and attitudes that make Canada distinct from the US. And of course, they talk a bit of hockey.

Find out what makes Liverpool worth at least a day's visit even for those with no interest in Fab Four lore, then hear from renowned classicist Mary Beard about some of the best places outside Italy to see remnants of the ancient Roman empire. And learn why one expert recommends finding a good home base to unlace your boots on a multi-day European hiking trip.

Hear how people of all ages enjoy a day at the baths in Budapest, where doctors commonly prescribe a relaxing day at the spa. Then learn about a sacred geothermal river located deep in Amazonian Peru: It's huge, deadly hot, and might contain clues to the origins of life on Earth. And get advice for enjoying the splendor of Padua, located just half an hour from the crowds of Venice, and home to one of Europe's oldest universities.

Journalist Paige McClanahan examines recent changes in the travel industry and explains how a more conscientious approach to tourism can make it a force for good. And travel writer Sophy Roberts recounts a curious episode in colonial history when the king of Belgium ordered a group of elephants to be sent from India to Congo — and discusses what her own travels taught her about Africa's past and present.

Expert tour guides share advice for exploring the ancient ruins and seaside villages along Turkey's Aegean coast, the Renaissance wonders of Florence, the sun-drenched Tuscan countryside, and charming Danish towns and islands easily reached on day trips from Copenhagen.

We hear how the Dutch continue to remember and honor the servicemen who helped liberate their towns in 1945. And we revisit a conversation with the late historian David McCullough about the influential "Americans in Paris" of the 19th century, who returned home with skills that helped transform life in the US.

English tour guides share their enthusiasm for enjoying the riot of color and inspiration you'll find in England's best country gardens. Then author Catie Marron explains how she designed and planted a garden as a way to feel a sense of belonging in her new home. And physicist Alan Lightman explains why it's healthy to give yourself a little unstructured time every day just for goofing off.