City Name: Horizons Light, due to it being a lighthouse in the past for ships in orbit.

Justins Building: The Undercroft, an old mausoleum for priests.

Johns Building: Angels Reach, an old Adeptus Arbites building.

Gerrys Building: Fulgurs Folly, an orbital lighthouse spire.

For those interested, I put together a story below to talk a little bit about each building and the city.

Commissar Cadet Derius Johntree jogged through the streets of Horizons Light, the sky above dark with clouds charged with static energy. This world rarely saw light other than the flashes of lightning generated by the constant roiling and rolling thunderstorms of its atmosphere. These huge storms moved perpetually around the world making the planet almost invisible from orbit to both instruments and the naked eye.
The orders he carried had come directly from the Commissariat and with only three left he was looking forward to getting back to his billet having a shower and getting some food, it had been a long day.
With a limited fuel supply until the main tankers landed or the cities pumps were brought back to life the use of vehicles was well above his pay grade. It has been good to get out after being on the ship so long but now he had had enough and just wanted to sort out his kit and get settled in.
Before him loomed his next stop, The Undercroft, or so it had been nicknamed, like many of the buildings around here it has been hit hard by the last war and what had once been a mausoleum for priests who had gone to the Emperor’s side had now become the barracks of the 214th Atillan Rough Riders.
Passing through the entrance Derius was surprised by how few people were about. The fallen masonry and dust of decades had been cleared to leave a fairly spartan area. Slowing to a walk Derius moved up the stairs to the first floor, here Guardsmen were manning the passageways and he was challenged for I.D. Satisfied they gave him directions to the units Commissar and he set off orders in hand.
Another level change led to a bridge and as he passed over it the sound of liquid running below made him realise how quiet the city was. You never really noticed all the noise until there wasn’t any. Imperial cities were full of sounds, the constant chatter of machinery and people normally neverending but here in this old battlefield and soon to be a new one, the lack of those familiarities made him feel uncomfortable.
Entering the courtyard between the wings at the back of the building the return of sound and unfortunately smell was immediate. The whinnying of horses, the guttural dialect of the Atillans was an assault on the senses after the calm of the corridors. All around him and up onto the tiers above the horses of the Rough Riders were stabled. A figure in a black leather brushing down a horse caught his eye. Jogging over Derius transitioned from a jog to march to a sharp halt. The crack of his heel slamming into the courtyard as he came to attention caused the horse to whinny and snort in his direction.
The Commissar turned to face him returning the salute and taking the proffered document. With little more than a nod he turned back breaking the seal to read the words within and Derius set off towards his next stop.

As he crossed over the road Derius could see the Space Marine statues standing atop his next destination. Angels Reach nicknamed for the Space Marines upon its highest point, it had once been an Adeptus Arbites control centre for this part of the city.
The bulk of the main building had been made up for the judicial arm of the Emperor’s law and been specifically designed to house and deal with the criminals of this world. Now, much in the same vein, it housed this areas Commissariat branch. Ideally placed and designed to be easily fortified this building had all the hallmarks to house the worst of the worst. Its proximity to what must have been the most important building in this city at one time making it an ideal staging point for forces if needed.
Moving closer to it’s shadowy from there was a definite difference in its design. The stone seemed to absorb light, it felt dark and claustrophobic. Strangely this made him feel more comfortable, like the interrogation levels he had spent a lot of his time training as a recruit in on Kolaris Prime.
On crossing the broad street and entering the foyer of the building the area was much busier, Adepts, Ad Mech and various branches moved around the entryway and Derius quickly made his way to a set of tables with various units junior soldiers sat behind them. Seeing the unit insignia of his next set of orders he had the Lance Corporal send a runner who quickly returned with the unit’s Adjutant. Another salute and another set of orders delivered, one more to go and then back to his room. Turning Derius began to head back the way he had come but a voice stopped him.
“Sir, no need to go that way, I see the next one is for the engineers just behind us, I could take you through the old prison block. It should save you a little time and it looks like the weathers changing.”
With a nod to the private, Derius let him lead the way. We made our way back down a level to the ground floor and passed through what must have been the prison block.
The door to the prison block was heavily reinforced but stood open, the cells either side of the corridor also bearing reinforced doors, there was no bars or glass, no flaps or shutters in the doors which seemed strange.
“Private do you know why the doors were designed this way?”
“Ah yes sir, it seems that although these are the cells this area is also a punishment block, much like the tower of pain below the Space Marines in the other part of this building. With this world being almost always dark due to the atmosphere and most of its light coming from the storms the Adeptus Arbites designed these cells to be in a state of perpetual light as a form of punishment. In fact, the only place that the prisoners would find darkness is in the tower of pain where they would be subjected to other forms of punishment. Eventually, the prisoners would go blind at which point they would be sent away to become servitors. The worse your crime the slower they would blind you in these cells.”
“Hmmm fitting I suppose, I always find it fascinating how individual worlds and cultures justice systems are influenced by their environment and or traditions.”
“Here we are sir!” Passing out the rear left of the cells another heavy door stood open. The gentle patter of rain ahead caused Derius to button up his jacket to the neck and with a nod of thanks he dismissed the private. He checked his cap was positioned correctly and pulled his jacket tighter as the wind picked up.

A flash of lightning lit the darkness revealing the tower before him, Fulgur’s Folly. He had caught glimpses of it on his way here and it had seemed a tall structure. It stood now a mere fraction of its former size but still impressive, the area before him was swarming with engineers and their vehicles, in between them were the Adeptus Mechanicus beavering away to bring this once marvel of a bygone age back to life. This was why they had come to this world and this was why they would likely all die trying to keep hold of this world. Having lost contact more than a century ago it had taken this long for the Adeptus Mechanicus petition to go through the channels and a force of considerable size to be put together and transition here. This tower was one of the last of its kind and could only be found on this world. The location of the STC for these massive constructs was thought to be hidden in these towers machine code. They had gained a few nicknames since we had arrived, to the Militarum they were called Emperors Sceptres, to the Ad Mech they were the God Machines Fingers but Derius liked the reference that had been found in the local manuscripts. Fulgurs Folly.
It seemed that millennia ago when these were being constructed it had been thought ludicrous to try and harness this planets thunderstorms lightning energy. For centuries people had tried and tested different theories and technologies, whole schools of academics had lived and died unable to achieve their goal but each time they got a little closer. To the academic community as a whole, this small cult of theorists and engineers had been ridiculed and ostracised, the fruit of their unachieved labours design being nicknamed Fulgurs Folly due to its link with lightning and the almost identical planned use of the lightning to diathermically affect the thunderstorms. But the final laugh came when Ethania Klausemann came up with a new form of glass made from the minerals found just a few hundred miles from Horizons Light. This newly developed glass had been able to hold, syphon or redirect the lightning’s energy through a combination of reflection, refraction and magnetic field manipulation. Whilst still unable to fully harvest the lightning potential it could take in a significant portion and allow it to be stored, the remainder would have to be redirected through reflection and refraction lest it overload and destroy the held charge. This excess was found to be useful in an unexpected way by redirecting it into space these towers became lighthouses to help navigate the planet’s atmosphere for ships orbiting and would also break up a storm in the area of the discharge for a short amount of time allowing an easier transition for orbital transports.
When fully functioning this thing would have been a sight to behold, the thunderstorms crackling around it and striking down with bolts of lightning only to have that energy harnessed and redirected in the form of a pulse back into the heavens from each of the major cities. It is even documented that the various cities pulses were unique and could be distinguished by ships sensors so you knew you were at the right location.

With a final glance at the sea of bodies before him and having located an Engineer officer Dercius headed out into the rain to drop off the last order packet. He already knew what was inside it. The ships in orbit had picked up multiple objects moving through the warp towards the system and not just one group either, units were being ordered to come to combat-ready. It seems this world would once again be exposed to the horrors of war and looking at the leering faces of the gargoyles upon this cities walls, Derius wondered if that was what they were all grinning at.