Christmastime in New York City means The Rockefeller Center Christmas Tree, The Rockettes and of course, holiday windows! This year, Barneys New York invited Lady Gaga to lend her artistic vision to their displays, with the wildest results showing up in “Gaga’s Boudoir,” where everything, from the drapes to a setee, is made from platinum hair. A few blocks away at Bergdorf Goodman, the landscape designer David Hoey embraced the theme “Wish You Were Here,” creating a fantastic voyage through the store’s windows. In one tableaux, a white-clad mannequin floats amid a sea of dark, glittering underwater creatures, while in another, a mannequin in more exotic garb heads off on a circus-like safari (think lions and antelopes!). Macy’s took the charitable route, partnering with the Make-a-Wish foundation to inspire their “We Grant Wishes” window, but also showed off some very ornate marionettes displaying the Jessica Simpson collection in another. Bloomingdales mixes nostalgia with some high tech social media: Each of their displays showcase a different vintage Bloomie's holiday bag that inspires that window's animated installment. But say cheese! Each window is outfitted with a camera that takes photos of onlookers and posts them to Bloomingdale's Holiday Windows Facebook Gallery!Click through the gallery and tell us: Which one is your favorite?