Frost Tower

The Frost Tower is a floating mass of ice and icy spires that flies around the Earth. It is under the ownership of Aurora, Major Fairy of the North, and acts as her home, as well as the home of her followers, the Arctic Fairies.

Overview
The Frost Tower is a large floating ice mass with multiple spires sticking out from it; the largest of which holds Aurora's throne at the very top. The inside of the Frost Tower is made up of a large maze of pathways that lead to every possible direction and, since it is under Aurora's ownership, she can control where these pathways lead as well as the Tower's flight path, speed, internal temperatures and so on. The Tower can also withstand various climates ranging from space or high atmospheric areas to areas closer to the Earth's surface without any issues.

Additionally, it acts as the home of her and the Arctic Fairies, as well as a type of vault for the Blizzard, the source of the Major Fairy's ice powers. It can also act as an arena of sorts like in the episode "Bloom's Trial."

Season 4

 * Winx Club - Episode 422
 * Winx Club - Episode 423

Trivia

 * The Frost Tower may have been inspired by the flying chariot that the Greek Goddess, Eos, uses to fly across the sky and signal the coming of her brother Helios, God of the Sun.