This week on the Travel with Rick Steves radio show and podcast: Meet an Irishman who scours the Emerald Isle to report on oddities and lesser-known facets of his country's culture. Then learn from guide Pål Bjarne Johansen (Norway with Pål) about the lasting impact of the Viking era in Norway and where to observe it on your next visit. And hear what it's like to bicycle 10,000 miles along the old Silk Road, from Turkey to Tibet.t. Find your local station, subscribe to the podcast, or listen onl