Anyone who grew up on The Cat In The Hat and Green Eggs and Ham remembers the illustrations of one Mr. Theodor Geisel, aka Dr. Seuss. Trees with elongated trucks or with improbable collections of limbs. Stark and scraggly landscapes with oddly balanced rocks and unlikely geometric shapes. Architecture with unusual protrusions and awkward angles where no two windows exactly the same. These were some of the hallmarks of the world Dr. Seuss illustrated in his 60 children’s books.

Here’s a look at some places on Planet Earth—places you can visit on your next vacation—that resemble scenes from a Dr. Seuss illustration. So, in the words of the doctor himself . . .

Castellfollit de la Roca has a doubly impressive location—it's perched atop a spit of land with cliffs on two sides.

Spot Cool Stuff loves a good cliff-side town. There’s something about them that’s romantic, daring and a little impossible. Here are five of our favorites places where no one with vertigo would want to live:

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