Croatia is a country in the Balkin region of Southern Europe.
The Heroes of Olympus
The House of Hades
The crew of the Argo II go to the coastal Croatian city of Split to find Diocletian's Scepter at Diocletian's Palace. Nico di Angelo is confronted by Cupid and admits his crush on Percy Jackson.
Trivia

Flag of Croatia.
- Croatia is one of the countries formed out of the former Yugoslavia along with Slovenia, North Macedonia, Bosnia and Herzegovina, Serbia, and Montenegro.
- All aforementioned countries, along with Bulgaria, are considered the south Slavic countries.