Royalty free image: Pick-Up and Drop-Off sign.

Royalty free image: Yellow BEWARE sign.

Royalty free image: Soft focus muted-color American flag.

Royalty free image: Two directional blank arrow signs pointing out away from one another.

Royalty free image: Bi-directional arrow pointing both left and right painted on a white brick wall.

Royalty free image: No right turn allowed sign.

Royalty free image: Rusted U.S. GOVERNMENT metal sign.

Royalty free image: Caution - Work Overhead sign on an urban sidewalk or walkway.

Royalty free image: Detail of American flag with gold trim or fringe.

Royalty free image: Two directional blank arrow signs pointing in towards one another.

Royalty free image: HERE sign with directional arrow pointing down.

Royalty free image: Green directional arrow sign on a wall and indicating an exit or way out for pedestrians.

Royalty free image: DETOUR sign with arrow pointing right and in an urban setting.

Royalty free image: No honking allowed sign.

Royalty free image: Close-up detail of American flag with gold trim.

Royalty free image: Red DANGER sign with blank space for adding text or graphics.

Royalty free image: Blank white sign in front of a group of international flags.

Royalty free image: Blank wooden directional arrow sign nailed to a post in a rural setting.

Royalty free image: Green and white PERMITTED sign hanging from a chain.

Royalty free image: Blank orange sign on the side of an empty highway or motorway.

Royalty free image: Group of American flags on metal poles.

Royalty free image: BAY ST tile street sign, Nassau, Bahamas.

Royalty free image: Swimming not allowed sign at a sandy beach.

Royalty free image: Warning - Unsafe For Bathing no swimming sign on a beach.

Royalty free image: Off-kilter directional arrow sign with selective focus effect.

Royalty free image: Close up of two directional arrow signs pointing in opposite directions and with a blue sky backgrou

Royalty free image: French flag with Seine River in background.

Royalty free image: Bumps in road caution sign.

Royalty free image: Metallic blue and red directional arrow signs pointing in opposite directions.

Royalty free image: DEAD END sign with a dark ominous stormy sky in the background.

Royalty free image: Lake Pleasant - No Lake Access sign in front of a large body of water.

Royalty free image: Close up of a directional sign with arrow pointing right towards a patch of blue sky in an otherwise

Royalty free image: Industrial smoke stack discharging a yellowish smoke.

Royalty free image: Pedestrian crossing ahead 200 ft road sign.

Royalty free image: Adults Not Permitted sign with playground or play park in the background.

Royalty free image: Blank triangular warning or caution sign on an industrial metal surface.

Royalty free image: Recycle sign.

Royalty free image: Close up of a directional sign with arrow pointing left and with dark overcast sky background.

Royalty free image: Dead and withered yellow and pink rose.

Royalty free image: Large blank green sign in front of a communications tower.

Royalty free image: Danger! Thin Ice frost-covered sign at edge of frozen body of water.

Royalty free image: A do not enter or no persons allowed sign on a riveted metal surface.

Royalty free image: No water available warning sign in dry desert landscape.

Royalty free image: Question mark sign with two-way directional arrow.

Royalty free image: Stone or concrete frame set in rough stone wall.

Royalty free image: Swimming not allowed sign with rough surf in background.

Royalty free image: Backlit French SORTIE sign indicating an exit or way out.

Royalty free image: Radiation fallout shelter sign on bare concrete wall.