Dive bars are drying up in Denver, swept away by tides of development. We've lost many of this city's old saloons over the last few years, which makes the survival of Carioca Cafe — better known as Bar Bar — something to celebrate. Perhaps with a drink or ten. It's fascinating to watch how the clientele at this spot at the edge of downtown changes over the course of a day (and three happy hours). Get there at noon and you can grab a cup of coffee and reading material — or just study some of Denver's finest barflies, a few of whom might have been there since the doors opened at 7 a.m. As the hour gets later, an assortment of hipsters, punks and rockers mixes in with those barflies, the live music starts, and the next thing you know, it's last call. Dive, he said.