Nidavellir (Earth-1600)

"Nidavellir is real? Seriously? I mean, that place is a legend. They make the most powerful, horrific weapons to ever torment the universe. I would very much like to go there, please."

- Rocket Raccoon Nidavellir is a neutron star and one of the Nine Realms, orbited by a multi-ringed megastructure which served as the homeworld of the Dwarves.