Chattanooga, the fourth largest city in Tennessee, is one of Livability.com's most accomplished cities, earning positions on several lists including Top 10 Downtowns and Top 10 Beer Cities. City dwellers and travelers frequent independent restaurants, art galleries and shops. The historic Tivoli Theatre provides a cultural complement to the city's many other attractions, which include the Tennessee Aquarium. With proximity to natural hotspots like Ruby Falls and Lookout Mountain, hiking trails and rivers, the city is also an ideal setting for outdoor adventure.