Red Light District

A red-light district is a part of an urban area with a concentration of prostitution and sex-oriented businesses, typically associated with female street prostitution, although some cities may have areas for male prostitution and gay venues. The term "red-light district" originated in the United States in the late 19th century, with possible influences from the American Old West and from sailors returning to Amsterdam with red lanterns indicating available prostitutes. Red-light districts can be officially designated by authorities for legal and regulated prostitution, such as in the Netherlands and Germany, and may be under video surveillance to counter illegal activities like child prostitution.learn more on wikipedia