Four Mile House started life as a barn, back in the days when what's now Glendale was filled with dairy farms dedicated to quenching Denver's thirst for more wholesome beverages. But by the time Jack Casey bought the place in the '60s, it was already a venerable tavern. Four decades later, it continues to provide its fans with many happy hours. The happiest, though, run from 4 to 7 p.m. on Friday, when the appetizers are absolutely free. So, of course, is the unbeatable camaraderie.