Navajo Code Talkers Exhibit at Burger King

Kayenta, Arizona

In the heart of the Navajo reservation, you can handle a Whopper and look at photos and articles that explain how 400 locals fluent in Navajo -- an indecipherable language without a written alphabet -- volunteered for a W.W.II secret tactical "code talkers" unit to evade Nazi and Jap code-crackers.

The display covers several walls, and has expanded over the years.