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U.S. Route 66 - Wikipedia
Route 66 | Construction, Popular Culture, & Facts | Britannica
Route 66 - U.S. National Park Service
1. Route 66 Overview - U.S. National Park Service
Route 66 road trip guide with interactive maps - Roadtrippers
The History of Route 66 - Oxford Research Encyclopedias
The Historic Route 66 — Google Arts & Culture
Route 66 History – National Historic Route 66 Federation
Route 66: National Register of Historic Places - U.S. National Park Service
National Historic Route 66 Federation
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