Tower 78 stood tall among the numerous structures extending from the enormous pyramid structure called the Imperial Palace located on Coruscant.
During the era of the Galactic Empire, Tower 78 was integrated into the Imperial Palace complex. This Tower, which possessed more than 400 levels, various chambers, and multiple hangars, served as the site for a conference between Darth Vader and Emperor Palpatine shortly after the battle that occurred above Yavin Prime. Some years later, following the passing of both the Emperor and Vader, the Imperial Kirtan Loor was escorted to bay 2 on level 443 to have a meeting with Director of Imperial Intelligence Ysanne Isard.