Aarhus, known as the 'City of Smiles', is Denmark's second-largest city and a massive university hub. It boasts a very youthful, energetic, and safe atmosphere. Exploring the ARoS Art Museum, the Latin Quarter, and the waterfront is highly secure at all hours. Because of the large student population, the nightlife along the river (Åboulevarden) gets extremely lively on weekends; while the environment is generally safe and well-policed, visitors should be prepared for rowdy, alcohol-fueled behavior late at night. Like the capital, bicycles rule the road here, so pedestrians must remain vigilant when crossing streets.