Animism — the belief that all natural phenomena have spirits — is considered the oldest form of human spirituality.

Speed cubers can solve a Rubik's Cube in under 4 seconds — the world record is 3.13 seconds.

Project Blue Book investigated reports of unidentified flying objects.

Pianos have over 12,000 individual parts and are considered both string instruments and percussion instruments.

The mathematical constant tau (τ = 2π) is championed by some as more natural than pi for describing circles.

Jim Thorpe won the pentathlon and decathlon at the 1912 Olympics — King Gustav V of Sweden called him 'the world's greatest athlete.'

Statistics and probability were developed partly to analyze gambling — Pascal and Fermat corresponded about dice games in 1654.

Synchronized swimming, now called artistic swimming, requires athletes to hold their breath for up to 3 minutes while performing choreography.

Figs are not a fruit in the traditional sense — they are inverted flowers that bloom on the inside of the pod.