WhenVogue World: Parishappened on June 23, the world had never seen an event quite like it.

How, exactly, didVogueand production company Bureau Buteak pull it all off?

A new video presented by Westin Hotels and Resorts offers a glimpse behind the curtain.

(Sensing the heightened stress, the staff also doled out survival kits that included massagers.)

Meanwhile, Goebel and her 69 dancers practiced tirelessly at a local French high school.

Here, go inside the making of Vogue World.