Hear how the US Civil Rights Trail, with 100 stops across 14 states, was organized to help all Americans get an up-close look at the movement to dismantle Jim Crow laws across the South. And listen in as ecologist Chris Morgan describes changes he's observed on Norway's Svalbard archipelago — halfway between the mainland and the North Pole — which indicate how our warming climate is a threat to life in the Arctic.

Three American-born tour guides who have settled in Europe tell us what it's like to make a new home in a foreign country. Then, a lifelong resident of Italy's Veneto region helps us explore the Venice Lagoon as an ever-changing ecosystem shaped by climate change, local history, and the distinct cultures of its islands.

Join us for a special hour with American author and environmental activist Terry Tempest Williams as she invites us to consider the interconnectedness of the natural world, and discusses what we gain from recognizing and engaging with all that's around us — including a heightened appreciation of the good in our world.

A pair of tour guides from Greece tell us how the island of Crete offers a natural experience unlike any other. Then travel writer Mark Adams describes his 3,000-mile voyage along the coasts of Alaska to follow what the Harriman Expedition saw in 1899. And a Dutch biologist explains how urban evolution is happening faster than we used to think all over the world.

New York Times reporter John Branch tells us how one family in southern Utah keeps a cowboy tradition alive at rodeos across the West. Then an award-winning travel journalist recommends itineraries for scenic road trips and sites to explore across California. And an environmental history scholar pays tribute to the American bald eagle, whose recovery from the brink of extinction is an environmental success story that can inspire everyone.

An Athenian theater director discusses drama's role as a building block of civil society since ancient times, and recommends some Greek destinations that are especially fascinating for the theatrically inclined. Then a pair of tour guides offer their picks for lesser-known Greek islands that promise a break from the bustle and expense of tourist centers such as Mykonos and Santorini. And an outdoor enthusiast lets us in on the wisdom of finding a good home base to unlace your boots on a multi-day European hiking trip.

On our Mother's Day edition, we hear what it was like to relocate a Midwestern family to the Croatian village their great-grandparents came from. An American who married a Frenchman tells us what it’s like raising a child in Paris. We go on a sentimental family trip to San Francisco, and hear how mamma is center stage in Sicily. Plus Rick pays tribute to his late mother, who influenced him to become a traveler.

The founder of a food-tour company tells us in delicious detail about some of his favorite eats to enjoy on the streets of Rome. Then a British tour guide shares how to take in London's historic core as well as its changing landscape on a visit to the boroughs of The City and Westminster. And a tour guide from Lisbon illuminates the contrasts between Portugal's bustling cities and the more traditional way of life that persists in the countryside.

One of Rick's longtime cohorts shares her road-tested advice on what you need — and don't need — to put in your suitcase for a successful overseas trip. Then a brother-and-sister pair of Swedish tour guides share their picks for places to explore beyond Stockholm, from easy day trips to coastal wilderness adventures. Plus, listeners chat with Rick about what made their recent travels feel special.

We hear why the city of Potsdam — home to elegant Prussian palaces and parklands, all in quick reach of central Berlin — is worth a day's visit. Then we get a sense of what life was really like for the emperors of ancient Rome, with the help of classicist Mary Beard. And we travel back to 1978 with Rick and his longtime buddy Gene Openshaw as they retrace their post-college adventures along the infamous "Hippie Trail" from Istanbul to Afghanistan to India, all the way to Kathmandu.