Greater Helium

 is a fictional district featured in the Warlord of Mars multimedia franchise, as first envisioned by author Edgar Rice Burroughs. It first appeared in the story A Princess of Mars, which was serialized in 1912, and later published as a novel in 1917.

Greater Helium is one of the two major districts found in the kingdom/city-state of Helium on the planet Barsoom, aka Mars. It is the sister district to Lesser Helium and the throne of the Heliumite Empire. Its most distinguishble landmark is the scarlet tower, which stands in stark opposition of the yellow tower of Lesser Helium. Around the 15th century (Earth time), Greater Helium was led by the Jeddak known as Tardos Mors.

Appearances

 * A Princess of Mars
 * The Warlord of Mars
 * Warlord of Mars: Dejah Thoris 1