While decades of beloved storytelling and devoted fandom certainly play a role, it's the countless thoughtful design details that truly cement the Disney parks’ reputation as the happiest place on Earth. “Successful design at Disney Parks is immersing our guests in the world of our stories,” explains Jeff Moskowitz, Walt Disney Imagineering Portfolio Executive Producer. Ahead, Moskowitz reveals the subtle design details you may have overlooked on your last visit—but that quietly work their magic to make Disney feel so unforgettable. Once the team has the design fundamentals down, they find creative ways to weave in the Disney magic. Of course, not all of Disney’s stealthiest design details are visual: Some of the biggest Easter eggs are olfactory.