The 17th-century canals of Amsterdam and the 19–20th century Defence Line of Amsterdam are on the UNESCO World Heritage List.
In the 19th and 20th centuries, the city expanded and many new neighborhoods and suburbs were planned and built. Originating as a small fishing village in the late 12th century, Amsterdam became one of the most important ports in the world during the Dutch Golden Age of the 17th century, and became the leading centre for the finance and trade sectors. Īmsterdam was founded at the Amstel, that was dammed to control flooding the city's name derives from the Amstel dam. Found within the Dutch province of North Holland, Amsterdam is colloquially referred to as the " Venice of the North", due to the large number of canals which form a UNESCO World Heritage Site. Amsterdam ( / ˈ æ m s t ər d æ m/ AM-stər-dam, UK also / ˌ æ m s t ər ˈ d æ m/ AM-stər- DAM, Dutch: ( listen)) is the capital and most populous city of the Netherlands with a population of 907,976 within the city proper, 1,558,755 in the urban area and 2,480,394 in the metropolitan area.