Factual Fridays - Part 1

So, I'd like to start a new feature on this blog called Factual Fridays. Basically, I will be doing some research on random interesting facts and post them here. I will post 5 new facts every Friday! No more wasting time, here is this week's list:

• The tallest skyscraper in the world is Dubai's Burj Khalifa. It was built in 2009. It measures 2,717 feet, 2300 feet taller than the tallest of the World Trade Centre buildings.

• A baby llama is called a cria.

• The world's heaviest person was Jon Brower Minnoch. Hailing from the United States of America, he weighed in at approximately 1,400 pounds (635 kg). He died at the age of 42.

• According to Facebook's Factsheet, it currently has 500 Million active users which it categorizes as 'users who  have returned to the site in the last 30 days'.

• More than 60% of known serial killers wet their beds past the age of 12.

So there we have it. The first ever Factual Fridays. Enjoy the weekend everybody. Before we know it, it will be over...