5. Atlantica from The Little Mermaid (1989)

Ariel is lucky among Disney Princess in that she has two castles to choose from. As a Princess in her own right, Ariel hails from the undersea kingdom of Atlantica. Then, through her marriage to Prince Eric, she joins the world above in a coastal castle that's equally iconic. Given that the latter is already brought to life in large scale at Magic Kingdom, we might as well look at the second in terms of its park-icon-ability.

Atlantica is a beautiful castle, looking sufficiently like a golden undersea Atlantis. It's imperfect, asymmetrical, and organic, looking like metallic coral shimmering on the ocean floor. We get a taste of what that whimsical undersea style looks like in a theme park at Tokyo DisneySea, but it's clear that Atlantica is pretty enough and iconic enough to serve as a park icon... it would just need to be an ocean-themed park which is the only reason it ranks this far down our list.

4. Beast's Castle from Beauty and the Beast (1992)

Located deep in a forest in France, we see more of the Beast's Castle – inside and out – than probably any other in Disney Animation. And the result is highly theme-park-able by any standard. The castle has been brought to life in Disney Parks to a significant degree twice – once in Magic Kingdom's New Fantasyland, and then in much larger scale in Tokyo Disneyland as the entrance to a curious Beauty and the Beast dark ride. Neither really looks quite like the movie version (and for some reason, both are painted purple), but we can absolutely see the animated version being the centerpiece of a Disneyland-style park.

If Disney were to build a theme park dedicated to their Renaissance run in the '90s, there's no doubt whatsoever that the Beast's Castle could (and should!) be the centerpiece of it. Though it was The Little Mermaid that kicked off the company's fairytale-centered animation rebirth, Beauty and the Beast has the unique position of being the first animated film ever nominated for the Best Picture category at the Academy Awards (a feat that's occurred just twice since – with Pixar's Up and Toy Story 3).

Plus, the Beast's Castle is practically tailor made for an evening projection show that could see the "curse" lifted, transforming the Castle from an overgrown, dark fortress into a shimmering castle of light.

3. Snow White's Castle from Snow White and the Seven Dwarfs (1937)

Snow White and the Seven Dwarfs was the world's (and thus, Disney's) first full-length animated feature film, introducing the first of what would later be called the Disney Princess. Given that, it's surpising how perfectly its castle could translate to a theme park, even today! Perched on a rocky outcropping over a German village, the lakeside castle is soaring and elegant; drawn with just enough fantasy to be unreal, yet looking totally buildable. 

For that reason, Snow White's Castle could absolutely be standing at the end of a Main Street (or equivalent) in the next Disneyland-style park to be built! Like the rest of the castles on this list, it's fanciful yet historic, and "generic" enough that it doesn't feel contained to the context of a single movie like Agrabah, Arendelle, and Atlantica do. 

2. Corona Castle from Tangled (2010)

Say what you will about Disney's first CGI fairy tale, Tangled, but the (unfortunately named) Kingdom of Corona's castle really is a sight to behold. Inspired by Normandy's Mont Saint-Michel and its abbey, the castle grows from a fortress foundation to beautiful teal domes, all reigning over an island town of festive banners. 

Given that it was quickly surpassed in box office receipts by 2013's Frozen, Tangled is pretty infamously ignored when it comes to Disney Parks. (Only DisneySea's new Fantasy Springs will dedicate a dark ride attraction to the film, while Walt Disney Studios Paris is at least label-slapping a spinning family ride with Tangled.) But its castle really could be the centerpiece of a Disney Park, surpassing the franchise it was designed for and coming across as a wonderfully stylized, warm, and fantastical Disney Castle in its own right. 

1. King Stefan's Castle from Sleeping Beauty (1959)

Like Cinderella, two Disney Parks castles are named for Aurora, the "Sleeping Beauty." However, the two Sleeping Beauty Castles (in Anaheim and Paris) both look quite different from each other. In a way, though, both do resemble the actual castle seen in 1959's Sleeping Beauty. (That's particularly surprising since Disneyland opened four years before Sleeping Beauty debuted, and allegedly, Walt intended for the castle to be called Snow White's Castle until late in the park's development.)

If our question is whether or not the film version of King Stefan's Castle could be a park icon, the answer is definitely yes. The animated version is certainly more than either of the real, built Sleeping Beauty Castles, but Disney could probably build the one seen on screen at the next Disneyland (wherever that ends up...) and it would work wonderfully.