If you’ve ever wondered whether the tours in the red double-decker buses were informative rest assured that they are not:

“People are not looking for a history lesson,” said David Chien, Gray Line’s director of marketing. “They’re looking to be entertained and to have a grand experience traveling 13 feet in the air through the City of New York.”

Among the many fibs the Daily News uncovered:

• Rudy Giuliani is still mayor
• New York is called Gotham because of its abundance of gothic architecture
• Tenements on the Lower East Side still exist along with “beatniks” in Greenwich Village
• Flappers went wild for Frank Sinatra in the Paramount theater during the 1890s