You only have to see Exchange LA to 'take stock' of what it used to be. Once the official dwellings of the LA Stock Exchange's downtown activity — which closed its operations in 1986 as fiscal business fled to other parts of the city — the building's four floors were unveiled as Los Angeles' most ambitious club concept in 2010.

Designed by Samuel Lunden and built in 1929, this opulent eleven-story Art Deco building is no longer run by fat cat investors, but the article of affection for the world's most successful DJs (Armin van Buuren, Carl Cox, AN21, Max Vangelli).

The old trading floor is now a massive main room strapped with Funktion Ones, 200sqft LED wall and a lighting rig designed by Steve Lieberman. Two VIP rooms — The Rockefeller Room, which used to be the members' lounge, and the Skyloft observation room overlooking the action — service those who DO have the dollar. The perfect place for LA's high-rollers.