Mind the Gap

Mind the Gap is an element in Tapestry of Nations.

Description
Mind the Gap is a phrase associated with the London Underground. It is written in uppercase lettering near the yellow line on the floor of the train station, warning users of the Underground to quite literally mind the gap between the station and the train.

Trivia

 * Mind the Gap is the title of a BBC America blog which helps Brits moving to the United States get familiar with American culture.