Let's start with the buns here. Katz's uses a rich, yellow, brioche-style bun to hold an all-beef wiener that snaps when you bite it. Cover that with a wad of caramelized onions and sauerkraut, and you have the makings of a damn good hot dog. If you're a purist, you can order the dog plain and squeeze mustard on it. Katz's is always open, so you can satisfy your hot dog craving whenever you want. And lucky for us, it's also a bar. You can wash down your pickles with an assortment of specialty drinks and cold beer. If you are in a particular mood, you can even take pictures in the photo booth with your awesome hot dog...but that can get messy.