Silivia

The City of Silver Lights was named after the silver lights that the cities buildings gives off, it's a very old city made about 100 years before the start of the war between the angels and demons. After the war started it became a safe place for those trying to hide from it.

It's also the city that Messenger, Korra, Chase and Baroness traveled to after they woke up in The Barn, this is where they meet Jack and Michael. The City is what sets the team out on their mission to stop The Demon, and his wayward son, Kaz.