Atlanta is the capital of Georgia and the largest city in the state. It is located in the northwest corner of the state and is home to just over half a million people. Its a diverse city that is known for its world-class attractions, unique culture, vibrant night-life and numerous outdoor activities. Atlanta is the birthplace of civil rights activities and the Civil Rights Movement. Famous tourist attractions include the Martin Luther King Jr. Historic Site, the World of Coca-Cola museum and the Georgia Aquarium. The city is also known for its vibrant music scene, which includes hip-hop, rap, jazz and blues. There are numerous parks, gardens, lakes and rivers in the city of Atlanta. These areas are great for outdoor activities such as hiking, biking and kayaking. Popular areas to visit include the Atlanta Botanical Garden and Piedmont Park. Atlanta is served by a number of airports and is the busiest in the world in terms of passengers per year. Hartsfield-Jackson Atlanta International Airport is the world's busiest airport in terms of passenger volume, and is a major hub for most of the international flights.