Not all road signs have lettering on them, which is true in the case of Tetris-shaped road signs. They’re almost always yellow diamonds, which means they’re a warning sign.

On another, the “INFINITE CLEARANCE” is posted beneath a yellow diamond-shaped sign that bears the figure-eight mathematical symbol for infinity. Recently, however, ...

“All We Have Is NOW.” “U R OK.” On another, the “INFINITE CLEARANCE” is posted beneath a yellow diamond-shaped sign that bears the figure-eight mathematical symbol for infinity.

The entire project is estimated to cost $1.8 million to replace all the stop, yield and yellow-backed, diamond-shaped signs that denote upcoming curves in the road.

The replacement of a city of San Diego street sign with a yellow diamond sign in La Jolla’s Windansea area has some residents scratching their heads.A diamond-shaped sign “warns you of ...

An intersection in La Jolla’s Windansea area again has a street sign identifying the names of Kolmar Street and Neptune Place.Part-time resident Brad Owens emailed the La Jolla Light a photo ...

Deer crossing signs once were a common sight on Minnesota highways, but not anymore. Over the past decade, the yellow diamond-shaped signs bearing an image of a deer have all but vanished from ...

The yellow, diamond-shaped signs in the windows and on the walls of fire stations, libraries, shops, restaurants and other businesses in Horry County signal a safe harbor to kids in trouble.