America's Best 24-Hour Hot Spots
Open round-the-clock since 2003, this offbeat doughnut shop has a treat for every hour of the day. Snack on a Diablos Rex (chocolate cake doughnut with red sprinkles and a vanilla frosting pentagram) during the witching hour, or try a new take on breakfast and order The Loop (raised yeast doughnut topped with Froot Loops). Its sister stores, Voodoo Too (Portland) and Tres (Eugene), recently went 24/7, adding to the nonstop sugar high.
What to Do at 3 a.m.: Take the Texas Challenge: if you eat a giant doughnut equal in size to six regular ones within 80 seconds, you get your money back ($3.95).