Decagon

The Decagon is a building located in Iacon from the Dreamwave portion of the Generation 1 continuity family.

The Decagon is a fortress-like building on the western perimeter of the city of Iacon, located among the High Council Pavilions. It is the main Autobot control center of planetary security and defenses.

Fiction

Generation 1

Dreamwave comics continuity

Jazz, Prowl and Bumblebee were in the Decagon discussing Optimus Prime's decision to head underground alone to face Megatron after the destruction of the Forum of Enlightenment. Skids alerted them to an incoming attack of Decepticon fighters under the leadership of Shockwave. War Within #2

The four Autobots managed the battle from the Decagon, sending out marching orders and battle assistance to their troops. Jazz declared the attack on the Decagon as "really stupid" since it was the Autobots' strongest position on the planet. Meanwhile, Prowl wondered aloud if that current attack, the destruction of the Forum, and the disappearance of their leader were all somehow connected. War Within #3

After the Decepticons successfully invaded Iacon, Prowl's group gathered in the Decagon for one last rousing speech before going into battle with the enemy. The building was presumably destroyed along with most of Iacon when Starscream engaged Cybertron's sub-planetary mechaforming platform. War Within #5

Games

Transformers: War for Cybertron (Xbox 360/PS3/PC)

Spoiler warning: Plot details for Transformers: War for Cybertron follow. Please give an expiry date ({{spoiler|(story)|DATE}}) - either the date of the next episode/issue in the series or 30 days after release, whichever is sooner

Following the apparent death of Zeta Prime, an Autobot officer named Optimus took temporary command of the Autobots led his squad down the ruined Iacon speedway in order to reach the Decagon. There they could use the communications tower to contact the Autobot ground forces. However, Starscream was waiting for them, and attacked. After chasing Starscream from the room, a distress call from Zeta Prime was projected in the Decagon's communications grid. Though it was an obvious trap, the message gave Optimus hope their leader could be rescued. Transformers: War for Cybertron