Nightclub Girls, South Korea

Types
Major cities around the world often have a variety of nightclubs, and small towns and cities also have nightclubs. Nightclubs often feature lighting and other effects, to enhance the dancing experience. Lighting and effects include flashing colored lights, moving light beams, laser light shows, strobe lights, mirror-covered disco balls, or foam, and smoke machines.
Nightclub hours vary widely across the world; in areas with strict liquor regulations in place, nightclubs may have a legal requirement to close at a certain hour. These cities sometimes have illegal "after hours" clubs that stay open and serve alcohol after this legal closing time. In non-regulated areas, nightclubs stay open all night and into early daylight hours.
Entertainment is the main attraction at some types of nightclubs. One type of club is a concert club, which specializes in hosting performances of live music. In contrast to regular night clubs, concert clubs are usually only open when a performance is scheduled. Other types of clubs include "all-ages" clubs, which allow non-drinking age attendees.