Family-friendly travel site, Trekaroo.com, has compiled a fantastic list of the United State's best zoos. The list was comprised based on the site's own users reviews and came out with these top ten:

10. Phoenix Zoo

9. Lowry Park Zoo (Tampa, FL)

8.  National Zoo (Washington DC)

7. Audubon Zoo (New Orleans, LA)

6. Woodland Park Zoo (Seattle, WA)

5.  The Bronx Zoo

4. Columbus Zoo

3.  Saint Louis Zoo

2. Henry Doorly Zoo (Omaha, NB)

1. San Diego Zoo