What public place has the most germs?

There was an experiment to find out that very answer actually, the results went like this.

1. Playgrounds
2. Bus rails/armrests
3. Public bathrooms
4. Shopping cart handles
5. Escalator handrails As you can see, Playgrounds
6. Chair armrests are the most germ infested
7. Vending machine buttons public places.
8. Shared pens
9. Public telephones
10. Elevator buttons