Glenn's Eberron Campaign
The Titan Pillars are large rock pillars typically with a gem at the top that radiate transmutation and conjuration. They are found only around the small but tall mountain range of Xen’drik called the Titan’s Teeth.
When activated, these pillars do extraordinary things. Typically, they enhance ones physical abilities, but others have been found that enhance memory, sight, magical aptitude, and even fertility and charisma. Some illuminate or uncover hidden areas as well.
When activated, they send out psionic waves in the area that can only be picked up by giants. All giants in an unknown but very large area are alerted of the pillar’s activation and location.