No Running Sign

1920 × 1920

Mine warning sign

3075 × 2304

Caution sign with warning text

1680 × 1050

Caution sign with humorous message

2000 × 1500

Skull and Crossbones — Red, Warning, Vector Art

2560 × 1600

Caution sign with Google joke

1366 × 768

Danger Keep Out sign with logos

4288 × 2416

Caution ancient relic sign

1280 × 800

Danger sign in a green field

1920 × 1200

Caution: This is Sparta sign

1920 × 1200

red prohibition symbol

1920 × 1200

Danger sign in a green field

2560 × 1600