We can thank those wacky conquistadors for inventing this first distilled liquor of the New World. True, the Aztecs had already thought up pulque, a form of the fermented drink from the agave plant, but it was the Spaniards who first distilled this into tequila, probably because they ran low on their own firewater. Nowadays, fine tequila is as highly regarded by snooty connoisseurs as excellent scotch or whiskey, and it boasts nearly as many varieties. The Old Town Tortilla Factory offers well more than 100 types of tequila in its "Margaritas Tequilaria," the bar adjacent to the beautiful, hacienda-like hideaway of a restaurant. Sure, there are traditional margaritas to be had, and fancier ones, like the "Millionaire's Margarita" with Cuervo Reserva and 150-year-old Celebration Grand Marnier. But we prefer a glass of one of those rare, anejo (aged) tequilas to sip, while we watch Tortilla Factory's must-see, fire-spitting waterfall gurgle in the moonlight. What would we say if the ghost of one of those ferocious conquistadors stopped by for a drink? What else? ¡Salud!