It was an Alfred Hitchcock movie. It was a hit song by U2. And now it's a swanky new lounge in the city. According to Thrillist, Vertigo Sky Lounge, the long-awaited lounge atop the Dana Hotel will open its doors this Saturday. Equipped with floor-to-ceiling windows and an outdoor lounge complete with a fire pit, which should give it a bit more longevity than most outdoor spaces, Vertigo has the makings of being the next ''it'' spot on the Chicago nightlife scene. With cocktail waitresses pushing carts replacing a go-to bar, the intention is to make guests feel like they're at a cocktail party. (Except it's a cocktail party where you pay for your drinks…) You can also place orders for cocktails not featured on the carts.