* The Capitol: The opulent, technologically advanced city that rules over Panem. It is characterized by its excessive luxury and extravagant fashion.
* District 12: A poor, coal-mining district where Katniss Everdeen and Peeta Mellark live. It is a stark contrast to the Capitol, characterized by poverty, hardship, and fear.
* The Capitol's Training Center: This is where the tributes prepare for the Games, engaging in physical and mental training.
* The Arena: The site of the Games, an enclosed environment designed by the Capitol to be a deadly obstacle course. In Catching Fire, the arena is a constantly changing environment with elements of nature and technology.
* District 13: A hidden, underground district that was destroyed by the Capitol in the past but secretly survives. Katniss plays a key role in its rediscovery.
Other important locations:
* District 4: A fishing district where Katniss and Peeta briefly visit during their Victory Tour.
* The Victory Tour: The tour Katniss and Peeta are forced to take to celebrate their victory in the Hunger Games. It takes them to several different districts, where they face a mixed reaction from the people.
The setting of Catching Fire is crucial to the story. It reflects the stark social and economic inequalities of Panem and highlights the oppressive nature of the Capitol's rule. The arena, in particular, is a powerful symbol of the Games' brutality and the Capitol's control over life and death.