What visual structure became the basis of McDonald's famous Golden Arches?

McDonald's Golden Arches were based on the arches built into the restaurant's original roadside architecture.

Architect Stanley Meston designed the distinctive restaurant building used by the McDonald brothers in the 1950s. Its two tall yellow arches were visible from the road and helped the restaurant stand out in the competitive drive-in market.

The arches were initially physical parts of the building rather than an abstract corporate logo. As McDonald's expanded, the architectural elements became a recognizable symbol that could be used on signs, packaging, advertisements, and restaurants far beyond the original locations.

People often assume the arches were created first as a letter M. Their connection with the letter came later, when the two forms were combined into the familiar Golden Arches symbol. The design's success came from linking a simple shape with a highly visible building style.