The five Giant Columns were created by the Sheikah alongside the Guardians to aid in the battle against Calamity Ganon during the events of the first Great Calamity. Their purpose was to store Guardians and would automatically emerge from below Hyrule Castle upon Calamity Ganon's return to Hyrule.
When Calamity Ganon returned during the events of the second Great Calamity, he took over the columns and all Guardians within them. They have since remained visible above ground around Hyrule Castle in a pentagon-shaped formation.
Features and Overview
Being structures built by the Sheikah, they have a similar appearance to the Sheikah's other creations, such as Ancient Shrines and Sheikah Towers. As such, their surfaces are not naturally scalable by Link, though it is possible to climb them using the protruding patterns as makeshift platforms. Guardians were stored inside the columns and emerged from the constellation points. At the top of each column lies a broken-down Guardian, which all yield an Ancient Material upon examination.
- Creating a Champion pg. 235
- "Robbie has restored mobility to many of the Guardians we've excavated. ...But we have still yet to find all of the Guardians. Records mention a greater number of them—and even other types. They are said to be stored in five giant columns that rest beneath Hyrule Castle. The thing is... No matter how I search beneath the castle, I can't seem to locate these columns. They must be buried deep. Were they perhaps designed to sense the appearance of Calamity Ganon and to only activate upon his return?" — Zelda's Research Notes (Breath of the Wild)