What is on the $100 bill?
Grab a $100 dollar bill and try this:

Step 1: Fold the bill in half

Step 2: Fold the back left up
(see image below)

Step 3: Fold the back right up
(see image below)

New York sky smoke trail


If you fold the hundred dollar bill correctly you can see an image of the New York skyline moments after the 9-11 attacks.

Try it for yourself. Do you see the smoke trail?