An Expansion available to all factions once an empire reaches Era II. The Megapole can only be built once in the world, meaning that once it is built by one empire it cannot be built by any other empire, and cannot be rebuilt by anyone if the city it was built in is razed. If the Megapole is completed by another empire before you, you will be refunded the strategic resources spent to build it and given an amount of Dust based on how far construction had progressed.
Completing the Industrial Megapole also completes the Legendary Deed "Baron of Industry".
Towns blossom with buildings and fortifications as the city plans you laid long ago come to fruition. In fact, your cities have been designed as enormous, efficient centers of industrial activity.
The Industrial Megapole is widely considered to be the most valuable of the five Legendary Buildings. As such, if you are having difficulty getting strategic resources early in the game, then you should save Titanium and Glassteel so that you can start working on the Megapole as soon as it is available, rather than spend the resources on building the Museum of Auriga.