Program 480a: Turn Right at Machu Picchu; Sarah Vowell-Lafayette; Scotch

Author Mark Adams shares what he learned about Incan history while trekking to Machu Picchu, just a century after it was revealed to the outside world. Then author and radio commentator Sarah Vowell explains how Revolutionary War hero Marquis de Lafayette helped unify Americans after the contentious presidential election of 1824. And Rick checks in with tour guides from Edinburgh to get tips on visiting Scotland's whisky distilleries.

• Mark Adams, author of "Turn Right at Machu Picchu" (Dutton) and "Tip of the Iceberg" (Dutton)
• Sarah Vowell, author of "Lafayette in the Somewhat United States" (Riverhead)
• Anne Doig, Scottish tour guide based in Edinburgh
• Brian Hay, tour guide based in Edinburgh
• Liz Lister, tour guide based in Fife, Scotland

• Mark Adams wrote "Turn Right at Machu Picchu" about his attempt to commemorate the centennial of Hiram Bingham finding the site of Machu Picchu in the Peruvian Andes.
• The Yale News discusses the repatriation of the Machu Picchu artifacts.
• Sarah Vowell has written six best selling non-fiction books on American history and culture.  Her most recent one is "Lafayette in the Somewhat United States."  She is represented by the Stephen Barclay Agency.
• George Washington's estate at Mount Vernon, Virginia is managed by the National Park Service. The historical collection includes the key to the Bastille, brought from Paris by the Marquis de Lafayette.
• The website for the Scotch Whisky Association includes a map of Scotland's different whisky-producing regions.
• The Scotch Whisky Experience "virtual distillery" is located near Edinburgh Castle.
• Liz Lister's website.