Krystalini Hidden Cocktail Bar sits on the mezzanine floor of 42 Nguyễn Huệ in Ho Chi Minh City. The bar serves creative cocktails, including the signature Ce La Vie, whiskey and cinnamon combinations, and fruit-flavored drinks. Guests enter through a hidden bookshelf door using a passcode given when they call to reserve, and choose drinks from a deck of cards instead of a standard menu. The entrance is not easy to spot, so finding it takes time at first.