Nightlife Party Girls

Nightclubs can be built in former warehouses and cinemas, deconsecrated churches, underground buildings, and custom-built buildings, and generally have thick insulated walls and few or no windows, so that the neighboring buildings will not be disturbed by the powerful beat of the dance music, the flashing lights and crowd noise generated throughout the night. This style of construction also keeps light and noise from the street from entering the club. This allows the nightclub to turn the dance floor into an alternate, illusory realm of timelessness. Even if an all-night rave at a nightclub lasts until 6 a.m., when it is light outside, to the clubgoers, it is still dark inside the club, and the partying and dancing continue.
Entry criteria
Many nightclubs choose who can enter, on bases other than just age, e.g. dress code and guest list. This is used to make their status as a nightclub more "elitist". Quite often, there are no clear policies governing entry to a nightclub, thereby allowing the doormen to deny entry to anybody at their discretion.