Elsa's Ice Palace

 is a limited-time attraction released with the Frozen Event Update on 7th December 2016. It was unlocked during the An Icy Masterpiece quest when Elsa is Level 3.

About
 was created by Elsa the Snow Queen in the 2013 Disney animated film Frozen, during the sequence of "Let It Go" on the North Mountain.

This palace was where she was supposed to live in isolation in order to protect people from her so that she can be safe from getting into trouble.

The menacing snowman and Elsa's personal guard, Marshmallow and the snowgies, live in the palace after Elsa vacated it.

Trivia

 * was a Legendary Chest prize in the Frozen Legendary Chests Promotion on 28th April 2017.