International supermarket chains such as Kaufland, Lidl, Metro, Selgros, Penny Market, Carrefour, Auchan, Cora, Profi, and Mega Image are all operating in Bucharest. The city is undergoing a retail boom. Bucharest hosts luxury brands such as Armani, Versace, Ralph Lauren, Dior, Prada, Chanel, Hermes, Louis Vuitton, and Gucci. Malls and large shopping centres have been built since the late 1990s, such as Băneasa Shopping City, AFI Palace Cotroceni, Mega Mall, București Mall, ParkLake Shopping Centre, Sun Plaza, Promenada Mall and longest Unirea Shopping Centre. Bucharest has over 20 malls as of 2019.