Professional soccer players run an average of 7 miles per match.

Norse mythology predicted the end of the world in a cataclysmic battle called Ragnarök.

Freestyle skiing's halfpipe event requires athletes to complete tricks at heights of up to 7 meters above the pipe's lip.

Particles can exist in multiple states until observed.

Olympic weightlifters follow a precise diet and weigh in the day before competition to make their weight category.

Christianity has around 2.4 billion followers worldwide — the most followed religion.

Gagaku, Japan's imperial court music, is the world's oldest surviving orchestral tradition, dating to the 7th century.

Music can influence mood and emotional state.

The modern Olympic Games began in 1896 in Athens, Greece.