The Heroes (monument)

 was a memorial to six of the greatest heroes of the Galactic Empire, three of the First Order and one of the Gladius Empire - namely Darth Gladius. It was located in the Square of Order that joined the Imperial Senate with the Sith Temple.

Above ground
The pedestal was a hexagonal piece of black obsidian specially imported from Mustafar. It was as wide as it was tall. Each corner of the hexagon was occupied by one statue made of the same obsidian. They were sculpted into the likenesses of Darth Vader, Grand Admiral Thrawn, Emperor Palpatine, Grand Admiral Thrawn, Grand Moff Tarkin, and General Tagge (clockwise). Behind Vader, Palpatine, and Tarkin were Kylo Ren, Supreme Leader Snoke, and General Hux, respectively. The First Order statues had their own secondary pedestals that raised the statues twenty meters. And in the center of it all was Darth Gladius, on another pedestal of five meters higher than those of the First Order heroes. His arms were outstretched, one holding a golden reproduction of Gladius’ lightsaber and the other a silver reproduction of the original Libro Imperii. At Vader’s feet was a golden plaque bearing the words ‘Glory to the Empires of Old, and Peace to the Dominion of our Sovereign’.