Luke Castellan

Empire State Building

Mount Olympus (600th Floor)

Mount Olympus sits on the mystical 600th floor of the Empire State Building. Percy visits multiple times across the series, and the final battle with Kronos takes place at its base.

United Nations Plaza

Where Kronos gathers his monster forces during the Battle of Manhattan before the final assault on Olympus.

Williamsburg Bridge

The Apollo cabin defends this bridge during the Battle of Manhattan. Kronos attacks here, Annabeth is stabbed by Ethan Nakamura, and Michael Yew dies or disappears.

Camp Half-Blood

Camp Half-Blood

The Greek demigod training camp on the North Shore of Long Island. Central hub of the entire series, appearing in every book. Protected by magical borders.