The tale of the Trojan Horse has been recounted countless times — including with a giant rabbit in the film Monty Python and the Holy Grail — and a wooden replica used in the 2004 film Troy now stands in Çanakkale, Turkey, near the site of ancient Troy. The timely legend even sparked the saying, “Beware of Greeks bearing gifts.” Yet historians still aren’t certain whether the story is factual or, more likely, an elaborate myth with some roots in reality. Some have theorized that the horse was a metaphor for whatever did destroy the city of Troy, such as a natural disaster or an enemy ship. But the prevailing theory is that the clever structure may have been based on ancient siege engines, such as battering rams, which were often covered with wet horse hides. The damp hides helped protect the wooden siege engines (and the soldiers using them) from flaming arrows, which may have been the inspiration for the legendary ruse.