This downtown rooftop is a must for anyone who enjoys fresh air and quality tequila. As the business day winds down in the summertime, the bar fills and the Herradura starts to flow in time with the large fountain near the stairwell. The place has more than 80 types of Mexican tequila. To sample it, order the tequila flight, three half-ounce glasses of silver, reposado and anejo. The names are as rich as the tastes: Cabo Wabo, El Conquistador, Corazon, Don Julio. And if you're not up for the straight shots, there's a wide selection of margaritas. They've got all the usual fruity varieties, but our favorite is the Cactus Juice, with Midori melon liqueur and blue curacao. Just watch your step on the way down the stairs at the end of the evening.