"Open until 4am, Sunday-Thursday | 5:30am, Friday-Saturday This diner is in the middle of downtown’s Hotel District, so there’s usually a mix of locals and out-of-towners here. They’ve got a pretty big menu, but the dessert section only consists of one thing: cake. An entire sugary circle will set you back $90, so we usually opt for the $10 slices. Of all the options (six cake and seven cheesecake flavors), Oreo cheesecake is our favorite—it comes with whipped icing and chunks of Oreos on top. Come in for the cake, but stay for the karaoke since you'll be more inspired to sing along to Chaka Khan's "Sweet Thing." - jacinta howard, juli horsford, nina reeder