Cinco de Cinco You'd be loco not to drink these. And the loco-est if you don't check out Margs Across America .

Given the surfeit of swill options available on America's most popular unofficial Mexican holiday, it's no surprise that what you drink and do on Cinco de Mayo often ends up a mystery. So, to honor that, we are, for the first time ever, publicly releasing The Great Margarita Mystery, a previously unpublished Hardy Boys adventure we found in the Thrillist Attic behind several Nerf Bow & Arrows, which features those intrepid (and now finally of-age!) boy sleuths touring sweet spots like The Saint, Carta De Oaxaca, etc, in search of the five best margaritas in The Town... and their father Fenton.