Organized crime groups in Japan (Yakuza) have their own offices, business cards, and publish internal newsletters.

The Mona Lisa has no eyebrows — it was fashionable to shave them in 15th-century Florence.

Social norms influence everyday behavior.

The word 'OK' is likely the most widely understood word on Earth.

Shakespeare invented over 1,700 words still used today, including 'bedroom,' 'lonely,' 'generous,' and 'obscene.'

Humanity continues to grow despite global challenges.

Anne Parrish found a childhood book she owned in a Paris bookstore years later.

The world's longest musical piece, 'As Slow As Possible,' is being performed in a German church and will last 639 years.

Wayne Gretzky scored so many goals in his NHL career that if you remove all his goals, he would still be the all-time leader in points.