Before we’re old enough to even see over the dashboard, we learn that green means go and red means stop. This internationally recognized traffic light color system is standard in most of the ...

In Japan, a game of Red Light, Green Light might be more like Red Light, Blue Light. Because of a linguistic quirk of Japanese, some of the country’s street lights feature "go" signals that are ...

Street lights in Nikko are a distinct hue of blue Credit: Flickr/ Antti T. Nissinen. Similarly, in both official documents and conversation, the “green” traffic light is referenced as ao ...