A red-light district or pleasure district is a part of an urban area where a concentration of prostitution and sex-oriented businesses, such as sex shops, strip clubs, and adult theaters, are found. In most cases, red-light districts are particularly associated with female street prostitution, though in some cities, these areas may coincide with spaces of male prostitution and gay venues. Areas in many big cities around the world have acquired an international reputation as red-light districts.

A strip club is a venue where strippers provide adult entertainment, predominantly in the form of striptease or other erotic dances. Strip clubs typically adopt a nightclub or bar style, and can also adopt a theatre or cabaret-style. American-style strip clubs began to appear outside North America after World War II, arriving in Asia in the late 1980s and Europe in 1978, where they competed against the local English and French styles of striptease and erotic performances.