Dwarves crafted such legendary Asgardian weapons as Thor 's hammer Mjolnir and Odin 's spear Gungnir .
Nidavellir was part of the landmass where Asgard , Alfheim , and Vanaheim were all situated .
Dwarves crafted such legendary Asgard weapons as Thor 's hammer Mjolnir and Odin 's spear Gungnir .
Nidavellir was part of the landmass where Asgard , Alfheim , and Vanaheim were all situated .