Loos American Bar

One of the most unusual and interesting bars in the center of Vienna, this very dark, sometimes mysterious bar was designed by the noteworthy architect Adolf Loos in 1908. At the time, it functioned as the drinking room of a private men's club. Today, it's more democratic and welcomes a mostly bilingual crowd of very hip singles from Vienna's arts-and-media scene. Walls, floors, and ceilings sport layers of dark marble and black onyx, making this one of the most expensive small-scale decors in the city. No food is served, but the mixologist's specialties include six kinds of martinis, plus five kinds of Manhattans, each 10€ ($16). Beer costs from 2.60€ ($4.20). It's open daily noon to 4am.

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.