Stone Tower

The Stone Tower is located at the northern edge of Termina's Ikana Canyon. It is filled with a large chasm, blocks, and pressure switches, and patrolled by ReDeads. You must play the Elegy of Emptiness to create a shell of your current form on the switches as normal Link, Zora Link, and Goron Link in order to hold all three switches down, which will then allow you to cross the chasm. At the top of the tower is an Owl Statue and Stone Tower Temple, home of the Light Arrow, Giant's Mask and worst of all, Twinmold. The Stone Tower also has the power to invert itself, providing the power of the Light Arrow is present.

Origins
The origins of this towers are mysterious, but there's a hypothesis that may help to clear things up.