9. Guanajuato, Mexico
Guanajuato is both stunning and culturally relevant. The former silver-mining town served as inspiration for the fictional Land of the Dead, a city in the upcoming Pixar movie Coco.
The UNESCO World Heritage Site is made up of peaceful squares, narrow alleyways, and brightly-colored buildings and churches that sit in a valley surrounded by mountains.
[Photo via @planbviajero]