Many people know the tequila, they have seen it in movies or series where people drink it with lemon.
Tequila is made in the state of Jalisco, Mexico, in a town that shares the same name. Tequila is located 65 kilometers from Guadalajara (second biggest city in Mexico), and thanks to the blue volcanic soil this region is particularly well suited to the growing of the blue agave, with more than 300 million of theses harvested every year.
One way to find out how the tequila is made (and in the mean time to taste many of their varieties) is to take a train that will take you to the production sites (http://www.tequilaexpress.com.mx/home or http://www.josecuervoexpress.com) . This train will take you from Guadalajara to Tequila. During the trip you will taste some tequilas, hear some music played by mariachis, eat and have a look of the towns near that city.
Finally, when you arrive to Tequila, you will visit some Haciendas (these were big properties owned by the Spanish people before the independence of Mexico) where the Tequila is processed.
The price of taking the train, eating, drinking, seeing some dances, listening to the mariachis and visiting the plantations, factories, etc is around 1200 pesos, which will be around 90 usd. If you go to the tourist office you can get discounts (sometimes like 50% off!).