Pho Ga (chicken pho) is traditional to northern Vietnam and is served all day. The best time to get it from a local vendor is early in the morning because it's SO fresh and makes for a perfect breakfast.
As a side note about this photo, I love spicy food so I thought that this was the perfect amount of chili peppers. As they warmed up however they spread a layer of hot chili oil over the soup making it very very spicy. While the colors make for a pretty picture, I had a stomach ache later. Stick to about 3 slices and then see how it tastes in 10 min.