Frosted fairies swoop between snow-covered trees as they guide a young boy from his bed to a whimsical forest with reindeer, angels and holiday magic.

No, it's not a trailer for a Disney release - it's just outside the Macy's flagship store in New York City, where six display windows have been transformed into an animated story.

While retailers in cities across the United States also deck themselves out for the season, none put on a bigger show than New York's storekeepers, who use everything from social media to 3-D projections to provide "retailtainment."

And each year the stores keep upping the ante.

In 2011, Barney's invited pop sensation Lady Gaga to unveil its holiday windows and this year the store teamed with rapper Jay Z to curate its windows.

Saks Fifth Avenue shut down traffic in front of their store for a show that includes ballet dancers and a light show.

While Bergdorf Goodman's flew acrobats out fourth-floor windows.

Many stores