US Route 666 Highway Sign - Historical Road Marker #241951 (License: Personal Use)

This is a high-visibility, retroreflective US Route 666 highway shield sign, featuring bold black numerals and “US” lettering on a white background with a distinctive black border. The sign follows the standard U.S. federal highway shield design, mounted with two holes for attachment. Though officially decommissioned in 2003 due to superstition surrounding the number 666, it remains a collectible symbol of American road history.

Used on transportation history websites, roadside attraction guides, vintage signage collections, or articles about highway renumbering; targets users researching U.S. route history, road trip culture, or symbolic numbering controversies.