The characters of Once Upon a Time traveled between multiple fantastical worlds and stories, which were made visually possible through a number of filming locations. ABC’s hit fantasy drama show Once Upon a Time ended after seven seasons and drew inspiration for characters and storylines from classic and modern fairy tales ranging from Snow White to Frozen. Though the main story primarily took place in the fictional town of Storybrooke, Maine, many magical realms were explored throughout the series. Once Upon a Time put a unique twist on characters, stories, and lands many viewers grew up with, and the show’s filming locations were integral to bringing them to life.
https://screenrant.com/once-upon-time-filming-locations-explained/