Run by two formerly fine-dining sommeliers, MAST is a high-end wine bar and bistro in Vienna's elegantly sleepy Porzellangasse in Distric 9. A wraparound wooden counter lit by pendant light bulbs awaits oenophiles, who can pick from a few dozen bubbles, whites, and reds by the glass on any day (half Austrian, half foreign, both conventional and natural producers).
There's a full-service kitchen, in fact, an elaborate six-course tasting menu is available to complement your imbibing (in 2023, MAST was awarded a Bib Gourmand by the Michelin guide). Given the steep price points, the crowd leans heavily corporate and there can be a bit of old-world formalism on the side of the sommeliers.
Speaking of Porzellangasse, just steps away is the jaw-dropping duo of Liechtenstein palaces with a public park, and this area was also home to Vienna's Jewish upper class before the Holocaust.