A pair of French tour guides tell us why Lyon is one of their favorite places in France. Then the president of the social-justice nonprofit Sojourners describes how the example set by Martin Luther King, Jr., inspires his work within religious communities in America. And a journalist from Iceland points out his country's surprising degree of influence on the world stage.

• French tour guides Virginie Moré and Patrick Vidal
• Sojourners President Adam Russell Taylor, author of "A More Perfect Union" (Broadleaf Books)
• Egill Bjarnason, author of "How Iceland Changed the World" (Penguin Books)

• The Rick Steves online guide to Lyon.
• The Lyon Festival of Light begins on December 8, It started in 1852 as a symbol of its citizens coming together.
• Virginie Moré specializes in small group tours of Lyon and Burgundy. 
• Tour guide Patrick Vidal lives in a 17th century stone house he's been renovating  in Brittany.
• Sojourners President Adam Russell Taylor is the author of "A More Perfect Union: A New Vision for Building the Beloved Community." He also posts blog commentaries at sojo.net. 
• Egill Bjarnason is the author of "How Iceland Changed the World."
• Egill reported for the Associated Press on the importance of climate change issues in Iceland's recent election.
• The anti-incest dating app helps to determine how closely related Icelanders may actually be to one another.