The Isle of Man has no national speed limit.

Each of the four British Vanguard-class ballistic missile submarines are issued, upon a new Prime Minister entering office, a letter of last resort. These are hand-written letters from the Prime Minister which give instructions on what to do in the event of a nuclear strike on Britain killing or incapacitating the Prime Minister and a designated second in command.

After the French Revolution, France adopted a 10 day week for 12 years.

Switzerland holds the largest amount of gold per citizen in the world.

Vampires traditionally suffer from arithmomania.

The tallest free-standing clock tower in the world is the Joseph Chamberlain Memorial Clock Tower at the University of Birmingham.

The unmanned landspeed record for railed vehicles is 6,462 mph.

The Vatican contains 5.9 popes per square mile.

The bulldog clip was invented in 1910 by Louis Baltzley.

Hawks are believed to have 20/2 vision.