City wall

From Metrophor

Alankha's city wall is one of the wonders of Alankha worth seeing--and indeed, any visitor will have to see it since there's no way into Alankha that doesn't pass through the wall's gates. The wall is constructed entirely of golems linked together both physically and magically. It is able to respond to commands issued directly by the Plenarch, but also possesses some degree of ability to react to threats on its own. As each golem comprising the wall is linked to every other magically, the wall itself is able to construct crude strategies in the event of an attack as well as send an alert to agents within the city.