Ecumenopolis: … Encased

For untold generations, the cold and empty ruins of … have stood dormant, as quiet symbols of a golden age that came to an abrupt end eons ago. No longer. The planet-wide city has at last been reborn, and those same dilapidated ruins are once more alive with activity. Where possible, existing buildings and infrastructure have been repaired and repurposed. Where the damage was too great, the rubble and ruins have been cleared away to allow for new construction.

The command below will trigger the "Ecumenopolis: … Encased" event in Stellaris:

When this event fires, you can choose between the following option:

• Impressive.