By DONALD MORRISON [NY Times, 1 February 2006]

For a city of such studied formality — where women still wear dresses, a man wouldn't be caught dead in public without a tie, and strollers routinely greet each other with handshakes — Vienna sure knows how to party. The winter social calendar features nearly 300 all-night balls, bars and restaurants routinely stay open until the small hours, and a popular local specialty is the "katerfrühstück," or hangover breakfast.