A tour of the Jelly Belly factory in Fairfield came in second in a survey done by the website Trip Advisor.
Hershey's Chocolate World in Pennsylvania topped the list.
Ben and Jerry's Ice Cream factory in Waterbury, Vermont was number five.
The San Francisco Gourmet Walking Chocolate Tour finished sixth.
- Hershey's Chocolate World: Hershey, PA
- Jelly Belly Factory Tour: Fairfield, CA
- Food on Foot Tours: New York City, NY
- M&M's World: Las Vegas, NV
- Ben & Jerry's Ice Cream Factory: Waterbury, VT
- Gourmet Walks: San Francisco, CA
- New World of Coca-Cola: Atlanta, GA
- Jean-Philippe Patisserie Chocolate Fountain: Las Vegas, NV
- Angell & Phelps Chocolate Factory: Daytona Beach, FL
- Eli's Cheesecake World: Chicago, IL