Ziggurat

The Ziggurat is a structure on Europa affiliated with the Pyramids. It was released by the Pyramid on Europa, and self-assembled into a stepped pyramidal structure embedded in the ice.

Trivia

 * The Ziggurat is a form of tower or temple back in the 3rd millenium BC from ancient Mesopotamian times, which has even inspired the stories of the Tower of Babel in the Bible.