De Wallen (Amsterdam Red Light District) Translated “The Walls” De Wallen is known as the center of prostitution and sex shops. Before you question why this area is included in attractions, consider that there are paid guided tours that will take visitors safely through the area and explain the history and the business of prostitution in Amsterdam ending at the Prostitution Information Center where you get a free drink, visit the museum of prostitution (yes there is one) and get to chat with a working girl.