Bhutan measures its success using Gross National Happiness instead of Gross Domestic Product.

Celtic mythology featured a world beyond death called the Otherworld — not a punishment but a paradise.

K-pop groups are often assembled by entertainment companies using rigorous auditions — trainees can spend years preparing.

Social norms influence everyday behavior.

The human voice is the only musical instrument capable of producing language simultaneously with music.

The word 'OK' is one of the most recognized expressions worldwide — likely originated from a playful 19th century American abbreviation fad.

Humanity continues to grow despite global challenges.

The vuvuzela, an African horn, produces sound at about 127 decibels — louder than a chainsaw.

The maximum legal weight for a cricket ball is 163 grams — close to a baseball but harder.