the New York Jets. Sister cities Marietta has two sister cities. Heredia, Costa Rica Linz am Rhein, Rhineland-Palatinate, Germany References Further reading At least two books have been produced chronicling the history of the city in pictures: External links City of Marietta official website Marietta Welcome Center Cities in Georgia (U.S. state) Cities in Cobb County, Georgia County seats in Georgia (U.S. state) Populated places established in 1834 Cities in the Atlanta metropolitan area 1834 establishments in Georgia (U.S. state)