For years, Denver has been aching for a real, serious Irish pub. With Katie Mullen's, it didn't just get one, it got four -- thanks to this huge space inside the Sheraton and clever architecture that allowed the endeavor to sprout four differently styled bars covering a good swath of Hibernian drinking history. It also opened with a custom tap system guaranteeing you the best possible pint of Guinness in the city, and a kitchen fitted out for serving three meals a day of honest-to-jaysus Irish cuisine - everything from fish and chips to bangers and mash to boxty, shepherd's pie and Jameson whiskey.