Already a site designed to surface interesting stuff, Reddit took it to the next level with a recent thread specifically asking for the most interesting/weird facts that people know.

Here are some of my favorites from that thread...

Honey does not spoil. You could feasibly eat 3000 year old honey. — Bluecheezeplatter 

To know when to mate, a male giraffe will continuously headbutt the female in the bladder until she urinates. The male then tastes the pee and that helps it determine whether the female is ovulating. — Sir_Ostrich 

It can take a photon 40,000 years to travel from the core of the sun to the surface, but only 8 minutes to travel the rest of the way to earth. — Bkaps 

A small percentage of the static you see on "dead" tv stations is left over radiation from the Big Bang. You're seeing residual effects of the Universe's creation. — FanInTheCorner  

Written language was invented independently by the Egyptians, Sumerians, Chinese, and Mayans. — NumberMuncher  

Basically anything that melts can be made into glass. You just have to cool off a molten material before its molecules have time to realign into what they were before being melted. — cowboy-up 

The Spanish national anthem has no words. — ricick 

Cleopatra lived closer in time to the Moon landing than to the construction of the Great Pyramid of Giza. — StickleyMan