De Wallen

De Wallen ("thin walls") are the biggest and most famous red-light district in Amsterdam. It is in the very old (14th century) part of the city around the Oude Kerk and Oudezijds Achterburgwal/Vorburgwal.
In December 2007, the mayor of Amsterdam and his government decided to buy many of brothelhouses within De Wallen. By doing this, the area used for prostitution and coffee shops gets smaller and smaller.