Used for water distribution, the Delaware Aqueduct in New York, USA is the longest tunnel in the world (as of 2010). Drilled through solid rock, it reaches a staggering 137 kilometres (85 miles) in length. More tunnel facts.

Every year, more than one million miles of Twizzlers licorice is made.

Percentage of mammal species that are monogamous: 3.

AMAZING FACTS