Xena: Warrior Princess is set primarily in a fantasy version of ancient Greece (sometimes alluding to Roman Greece) and was filmed in New Zealand. Some filming locations are confidential, but many scenes were recorded in places such as the Waitakere Ranges Regional Park, part of the Auckland Regional parks often credited at the end of the episodes.

The Ancient Greece depicted in the show is largely derived from historical locations and customs, modifying known places and events – battles, trading routes, towns, and so on – to generate an attractive fictional world. The settlements are presented as a mixture of walled villages and rural hamlets set in a lush green, mountainous landscape. They are often seen under attack from warlords, and travelling between them involves frequent encounters with small bands of outlaws. All of the main towns are named after historic towns of Ancient Greece, and exhibit some of their essential characteristics.

https://www.imdb.com/title/tt0112230/