Brian Rossi's love affair with agave spirits has been developing for more than a decade, and since he launched Adelitas four years ago, Denver drinkers have been the direct beneficiary of his obsession. Rossi set out to highlight small, independent producers making high-quality tequila, and he amassed a sizable collection of such bottlings that continues to grow. After a trip to Oaxaca turned him on to the charms of the educational experience offered by mezcalerias, he opened Palenque directly behind his flagship, expanding his Mexican spirits offerings to encapsulate mezcal and other agave-based libations. This gives you, the discerning imbiber, an opportunity to taste dozens of rare finds, discovering whether you prefer smoky notes in a mezcal; verdant, smooth tequila; or another agave spirit entirely, such as raicilla. You'll have to bar-hop to take it all in, but you'll stay on the same city lot — and Palenque's cozy environs present a nice contrast to the slightly wilder Adelitas. More of a cocktail drinker? No problem. Both joints offer a list of drinks that nicely showcase their wares, including the excellent house margarita at Adelitas.