The historical centre of Amsterdam with its concentric canals was largely built during the Dutch Golden Age in the 17th century. As of January 1, 2006 the city of Amsterdam has a population of 743,027. Is noted for many outstanding museums, including the Rijksmuseum, the Stedelijk Museum, the Rembrandt House Museum, and its world-class symphony orchestra,the Concertgebouworkest. The Van Gogh Museum houses the largest collection of Van Gogh's paintings and drawings in the world. Anne Frank House is also a popular tourist attraction. Amsterdam is known as one of the most bicycle-friendly cities in the world and is a centre of bicycle culture. Most main streets have bike paths. Bike racks are ubiquitous throughout the city.