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 day, the Hubble telescope transmits enough data to fit 10,000 standard computer disks.

Spam filters that catch the word "cialis" will not allow many work-related e-mails through because that word is embedded inside the word "specialist".

AMAZING FACTS