The oldest part of Denver, now the neighborhoods of Auraria Campus, LoDo, much of downtown, and Five Points, is laid out on a grid plan that is oriented diagonal to the four cardinal directions. The rest of the city, including the eastern part of downtown, is laid out primarily on a grid oriented to the cardinal directions. In this larger grid, from east to west, there are generally 16 city blocks per mile, except between Zuni Street and Lowell Boulevard in west Denver. From north to south, there are typically eight blocks per mile, although there are many areas with more blocks per mile. Addresses follow a decimal system, with addresses advancing by one hundred at each cross street.