What is the setting of Artemis Fowl by Eoin Colfer?

The story is set in several different sites: Ho Chi Minh City, Haven City, Italy, and Fowl Manor in Ireland. The time period is present day. The settings mix both real and fictional/fantasy places. Ho Chi Minh City is a real city and Haven City is purely fictional. Both the city in Italy and Fowl Manor mix fiction and reality in their descriptions.