A columnist for the Irish Times discusses the dramatic recent changes in public opinion and attitude in Republic of Ireland, and how he's seen it become a modern, progressive nation over his lifetime. And a journalist from Utah tells us how to find some of the roadways the ancient Romans built to connect outposts of their empire — all the way to Istanbul.

737 A History of Modern Ireland; Following Caesar

A weekly one-hour conversation with guest experts and callers about travel, cultures, people, and the things we find around the world that give life its extra sparkle. Rick Steves is America's leading authority on travel to Europe and beyond. Host and writer of over a hundred public television travel shows and author of 30 best-selling guidebooks, Rick now brings his passion for exploring and understanding our world to public radio. Related travel information and message boards on www.ricksteves.com

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A German journalist shares some timely thoughts on what his fellow citizens find appealing about America, as well as his insights into the intriguing differences between our two societies. Then a London "mudlarker" who searches the River Thames at low tide for buried objects describes how discarded items can connect us with life in the Victorian era, and even as far back as Roman times.

753 German Views; Mudlarking the Thames

A Dutch guide invites us to imagine a day on the water exploring Amsterdam's iconic canals. Then a historian shares what little we know of the elusive Sentinelese — likely the most isolated, least contacted people on earth — and what he learned by traveling to nearby islands in the Bay of Bengal. And a tour guide from Portugal tells us why the venerable university of town of Coimbra is such a delight to explore.

752 Amsterdam Canals; The Last Island; Coimbra

Celebrate Earth Day by considering the ways you can address climate change at home, with practical advice from a scientist who's seen its effects around the world. Then hear from a culinary historian about the crops, farm animals, and agricultural traditions that we risk losing in America. And mark Shakespeare's birthday by learning how his works have played a key role in shaping Africa's newest nation and by getting tips for enjoying a visit to his hometown of Stratford-upon-Avon.

751 Eyewitness to Climate Change; Endangered Eating; Shakespeare in Stratford and South Sudan

We admire the seafaring prowess of the Polynesians and hear how a cultural faux pas led to Captain James Cook's fateful encounter with 18th-century Hawaiians. Then tour guides from Athens and Thessaloniki recommend attractions to visit in northern Greece, and The New Yorker’s "Comma Queen," Mary Norris, explains what an appreciation for Greek language and mythology can add to your own Greek odyssey.

591a Polynesian Explorers; Northern Greece; Greek to Me

We learn some surprisingly useful Italian phrases from one of Italy's most popular newspaper columnists, then consider why certain places have fostered more than their share of world-changing innovations, and hear about Timbuktu's history as an important center for scholarship. Plus, we find out about the thrill of dropping in on a choir practice in small-town Wales.

737 A History of Modern Ireland; Following Caesar

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