509
- The world’s oldest wooden wheel has been around for more than 5,000 years;
- The cornea is one of only two parts of the human body without blood vessels;
- The world’s first animated feature film was made in Argentina;
- The Philippines consists of 7,641 islands;
- There’s enough gold inside Earth to coat the planet;
- Human beings can use only a small fraction of Earth’s water;
- It takes a drop of water 90 days to travel the entire Mississippi River;
5006
4621
4303
51
95
111
95
111
267
281
303
364
525
577
