Sex work in France, like other countries takes many forms. These include street prostitution, escort services, bars, and apartment prostitution. Street prostitution is partly controlled by pimps, while other workers are autonomous prostitutes. In some areas, such as Lyon or the Bois de Boulogne in Paris, sex workers use vans (see illustration). The most famous prostitution street in Paris, the "la Rue Saint-Denis", has been somewhat gentrified in recent years and the prostitutes have been moved further north. Escort services where one hires a woman or man for "entertainment" or companionship, but usually including sex, are less common in France, compared to North America. In bars, women try to induce men to buy expensive drinks along with sexual acts. Prices are set by the bar owner, and the money is shared between the owner and the prostitute. Pigalle peepshows are well known for practicing such scams. Prostitution in apartments is advertised in adult newspapers and magazines. Swingers' clubs are places where partner-swapping occurs and sometimes paid prostitutes are in attendance, as well as "amateur" women and couples who get in without paying the flat-rate charge of about 80 to 120 euros that men pay, including food, drink and unlimited sex sessions, with the added twist that these are performed in the open in full view of all the guests.