When Glen Bell decided to start the little taco stand Taco Tia, he didn’t know it would become a global icon for the Mexican favorite. The franchise started in 1962 in California and has now exploded with more than 6,500 locations and over 2 billion customers around the world. The franchise has gained popularity with their hard shell taco filled with delicious meats, melted cheddar cheese and fresh lettuce and tomatoes. Taco Bell has also made its mark with four types of hard taco shells. Their ranch, cheddar and fiery shells offer a special kick to this old favorite.