Magic Square
| 16 | 3 | 2 | 13 |
| 5 | 10 | 11 | 8 |
| 9 | 6 | 7 | 12 |
| 4 | 15 | 14 | 1 |
Guys see this magic Square.
Add every row, column and diagonal and you get 34. Split the table up into 2x2 squares and add the numbers in each square. You'll get 34. Add any two numbers symmetrical to the centre and you'll get 17 which is 34 / 2. Also the guy who made this, Albrecht Drüer, made it in 1514, which is precisely the number in the middle two squares in the bottom row.
The first time I saw this, my mind blew. It's literally insane.