Hel

"See you in Hel, monster!"

- Loki to Algrim

Hel is a region of Niflheim that serves as the home of the dead who are neither honored nor dishonored.

History
"Heimdall, your eyes!" "They see everything. They see you leading us to Hel."

- Thor and Heimdall in a vision

Hel was among the worlds labeled by Erik Selvig on his chalkboard mapping the Nine Realms. Loki also promised Algrim he would see him in Hel following their final confrontation.

Thor mentioned Hel after Bruce Banner stormed Wolfgang von Strucker's base as Hulk at Sokovia.

Trivia

 * Hel was identified by Kevin Feige on Thor: The Dark World 's audio commentary track.
 * In the comics, Hel is ruled and named after Loki's illegitimate daughter, Hela.