Yes, the '50s shtick can seem a little glaring at 4 a.m., when all you need is a big burger or a plate of steak and eggs to start — or end — your day. But even though Great Scotts hasn't been around since the '50s, it's been around long enough to serve a generation of fans authentically good roadside fare. While the second location, in Broomfield, isn't open 24/7, you can count on the original just off the highway to have the welcome sign out day or night.