Billings is sometimes called "The Magic City" for its rapid growth that seems to change the skyline overnight. Located in the heart of the Yellowstone Valley, it is Montana's largest city and the state's premier business destination. From 1900 to the 1960s—Billings's "Golden Years"—locals and tourists alike enjoyed a variety of hotels, fine restaurants, and retail and wholesale shopping, while businesses such as sugar and oil refineries, banking, and brewing kept the economy running. Surrounded by unparalleled natural splendor, Billings has always had the stark juxtaposition of a modern city set amid wilderness, as these vintage postcards attest.