On the corner of Rue Ste-Catherine and St. Laurent, Studio XXX is famous among locals for its opaque window displaying the outline of a live sexy female dancer. The largest and most visited of the peep shows in Montreal, it sits on the top floor above five full storefronts. With 18 different cabins and a stock of 1500 movies of all tastes to choose from, it is a one-stop shop for anybody looking for a private viewing. The private rooms are a popular place for the sex workers working the outside intersection.