For those that care about such things, I have found no record of a longer "Champagne" bar, I found a reference to the longest bar in the world, at 684 feet (or about 208.5 meters), located at the New Bulldog in Rock Island, Illinois. This is from the website
Alcohol Trivia website and quotes as its source: Yenne, B., and Debolski, T.
The Ultimate Book of Beer Trivia. San Mateo, CA: Bluewood, 1994, pp. 101-102.
For those that don't care, a truly funny piece from the
Guardian asking why anyone would care about such a distinction.