Marietta is a city located in Cobb County, Georgia, United States. It is part of the Atlanta metropolitan area and has a rich history dating back to the early 19th century. The city is known for its charming downtown area, which features historic buildings, shops, and restaurants. The population of Marietta is approximately 60,000 residents, making it one of the larger cities in the state. The city offers various parks and recreational facilities, including Kennesaw Mountain National Battlefield Park, which is popular for hiking and outdoor activities. Marietta also hosts several annual events and festivals that celebrate its community spirit.