Heimdall's Observatory



Heimdall's Observatory is located just outside Asgard and is connected by the Rainbow Bridge. The Observatory generates and directs the Bifrost using the energy that runs through the Rainbow Bridge. From the Observatory, Heimdall commands the Bifrost and looks over the Nine Realms and other regions of space. It is considered the or one of the most important places in all the Nine Realms.

History
Built on the outside of Asgard, Odin appointed Heimdall, who was gifted with enhanced senses, as its keeper.

Thor and his companions traveled to it to journey to Jotunheim, and later Odin banished Thor from Asgard from within the Observatory. Later, Heimdall opens the Bifrost for Thor's friends when they journey to Midgard to bring back Thor. When Loki becomes regent after Odin falls into the Odinsleep, Heimdall is relieved of his duties as gatekeeper and his citizenship of Asgard is revoked by Loki, and is subsequently imprisoned in ice using the Casket of Ancient Winters. Loki travels to Jotunheim and brings Laufey and two other Frost Giants to Asgard to assassinate Odin. The two Frost Giants are told to guard the Observatory and the frozen Heimdall. Hearing Thor's shouts to open the Bifrost, Heimdall manages to break out of the ice and slay the two Frost Giant sentries and bring back Thor and his friends to Asgard. Loki then opens the Bifrost to destroy Jotunheim, but Thor fights him, and ends up breaking the Rainbow Bridge and the Observatory falls into the abyss of space. Loki then refuses to accept his father's help and falls into the wormhole that the broken Observatory forms with the Bifrost.

Trivia
The connector of the Bifrost and Rainbow Bridge, the Observatory converts the energy that flows through the Rainbow Bridge and generates the Bifrost portal with it.