Fly Burgers-An American Kitchen in Da Nang serves American-style burgers and hot dogs. The patties are pressed flat and grilled, with thick layers of cheese and sauce, and the fries come out hot and crisp. The shop moved from its earlier location and is now cleaner than it was two years ago, and it is open from 9 a.m. to 1 a.m. The sauces and mayonnaise are strongly flavored, and the food tends to be salty.