It's known as the world's oldest profession, and it's also one of the most controversial -- prostitution.
And in Germany, a liberal approach has now led to mega-brothels opening across the country, earning the nation the title of Europe's Bordello.
In what could be described as sex supermarkets, prominent advertising and luxury surroundings attract the male customers, who can choose from the range of women on offer.
But what are the real-life stories of those touting for business in the brothel windows, and what will happen if the politicians lobbying for change get their way?
Dateline's Amos Roberts met with some of the people behind the scenes and tells Ron Sutton just how big it all is.
(Click on the audio tab above to hear the full interview)
