Jason Grace

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.

Camp Jupiter

Camp Jupiter (Roman Demigod Camp)

The Roman demigod training camp located in the Berkeley Hills near the Caldecott Tunnel. Home to the Twelfth Legion Fulminata. Percy arrives here with no memory in The Son of Neptune.

Mount Diablo

The climactic battle against the giant Enceladus takes place on Mount Diablo. Jason, Piper, and Leo confront the giant here to rescue Piper's father.

Wolf House (Jack London State Historic Park)

Lupa's Wolf House

The ruins of Jack London's Wolf House serve as the lair of Lupa, the wolf goddess who trains Roman demigods. Hera is imprisoned here by Gaia's forces, and the final battle of The Lost Hero takes place at the ruins.

Colosseum

Colosseum (Lair of Monsters)

The ancient Roman Colosseum where the demigods battle monsters. The underground hypogeum still holds ancient threats connected to the mythological world.

Acropolis of Athens

Acropolis (Site of the Gigantomachy)

The Acropolis and Parthenon are the site of the final battle against Gaia's giants. The demigods and gods unite here for the Gigantomachy, the climactic battle of the series.

Necromanteion of Acheron

The House of Hades (Doors of Death)

The ancient Oracle of the Dead in Epirus, Greece. The surface-side entrance to the Doors of Death. The demigods must close the Doors from both sides simultaneously.

Grand Canyon Skywalk

The opening scene of The Heroes of Olympus series. Jason, Piper, and Leo are on a school field trip to the Grand Canyon Skywalk when storm spirits (venti) attack and Coach Hedge reveals himself as a satyr.

Great Salt Lake

The Argo II passes over the Great Salt Lake area during the cross-country journey from Camp Jupiter to Rome.

Strait of Gibraltar

Pillars of Hercules

The strait between Spain and Morocco, known in mythology as the Pillars of Hercules. The Argo II must pass through to enter the Mediterranean, facing Hercules himself as a guardian.

Diocletian's Palace

Palace of Diocletian

The ancient Roman palace in Split, Croatia where the demigods seek the Scepter of Diocletian. The palace holds Roman imperial power connected to the mythological world.

Piper McLean's Malibu House

Piper McLean's house in Malibu, California. Apollo and friends use it as a gathering point. This is also where Jason Grace leaves from for his final mission.

Marina del Rey

The marina where Caligula keeps his fleet of yachts. The climactic and tragic battle of The Burning Maze takes place here, where Jason Grace sacrifices himself.