Rick engages a panel of European tour-guide friends to find out how they're responding to recent changes in the political relationship between their countries and the US, and to discuss the home-grown populist pressures that have been gaining followers in Europe. Plus sculptor Richard Rhodes recommends European destinations with especially impressive stonework — from famous buildings to little-known sites that have endured through the ages.

• Yoreh Schipper, tour guide based in Rotterdam, Netherlands
• Nina Seffusatti, tour guide based in Avignon, France
• Katja Willebrand, tour guide based in the Aosta Valley, Italy
• Stone mason/artist Richard Rhodes, author of "Stone: Ancient Craft to Modern Mastery" (Princeton Architectural Press)

• Yoreh Schipper offers walking tours from his home base in Rotterdam.
• Nina Seffusatti offers private tours in southern France and Scandinavia ([email protected]).
• Katja Willebrand was raised in Germany, and now lives in the Aosta Valley of northern Italy, where she is a trained hiking and mountain guide ([email protected]).
• Richard Rhodes includes photographs he's taken over the years to view noteworthy stone works around the world in his book "Stone: Ancient Craft to Modern Mastery."
• Richard's TED talk is "Hammer, Chisel, Stone — Simple Tools for Hard Moments." He includes photos of his work on his RhodesWorksDesign.com website.