Paris

From Futurama Wiki

Paris is a city on Earth, in the country of France. It was an equal of both Old New York and Atlanta. ("The Deep South")

In both 1999 and 2999, Paris was host to New Year's Eve celebrations. ("Space Pilot 3000")

In 3001, Calculon told Fry, Leela, and Bender that the original Were-car may be in Paris. ("The Honking")

In Paris, it seems they no longer speak French, since French is an extinct language in the 31st century.