Pizzeria 450-Gradi is a Neapolitan-style pizzeria in Vienna's 17th district, baking its pizzas in a dome oven at 450 degrees for an authentic airy crust. It uses ingredients imported directly from Italy, such as Caputo flour, San Marzano-style tomatoes and Fior di Latte mozzarella, and has a cozy backyard seating area.