The World's Best Red Light Districts, Ranked Not that you would ever visit a red light district during one of your many . Hamburg, Germany . As the most notorious red light district in the world, Amsterdam's De Japan is well known for its eccentricities (some more charming than others), and its biggest red light district is no Reeperbahn | Hamburg, Germany. Red - light districts are areas associated with the sex industry and sex-oriented businesses In Austria; Belgium; Denmark; Germany ; Netherlands; Spain; Switzerland; United Kingdom .. Jump up ^ " Bahnhofsviertel in Frankfurt am Main Sights Top Highlights Reviews Best spots city center". Europe · Germany · Netherlands · United Kingdom. Nightlife columnist Bernard Trink gave Soi its name, after the late T. So, as with everything in life, the key to a great time is low expectations. From Wikipedia, the free encyclopedia. International edition switch to the UK edition switch to the US edition switch to the Australia edition. Operating a brothel, pimping and soliciting in a public place are illegal however in practice prostitution is tolerated and regulated.