Route 66 Neon Signs Grants, New Mexico, located along the historic Route 66, played a significant role in the highway's golden age during the mid-20th century. One of the most iconic landmarks in Grants is the West Theatre and its neon sign. Built in 1937, the theatre became a centerpiece of entertainment for both locals and Route 66 travelers. The sign remains a nostalgic reminder of the city's heyday along Route 66