Along with the sun and moon, the goddess of love was offered in exchange for this structure's construction, under the condition that it be done within one winter.
The original version of this structure was "broken" during a war that was presaged by the coming of a witch who was thrice burned to death but who was reborn each time. Just aeer passing over this structure, an eagle in pursuit of a hawk carrying a valuable nut was burned to death when its feathers caught ⎜re from a pile of plane shavings. Along with the sun and moon, the goddess of love was offered in exchange for this structure's construction, under the condition that it be done within one winter. To prevent the timely completion of this structure, a trickster transformed into a mare to distract the stallion Svadilfari (SVAH-dil-far-ee) from hauling stones, resulting in the birth of Sleipnir. The unnamed giant who built these forti⎜cations was killed by Thor. For 10 points, what structure defended the home of the Norse gods?
The original version of this structure was "broken" during a war that was presaged by the coming of a witch who was thrice burned to death but who was reborn each time.
walls of Asgard [prompt on partial answers; accept answers indicating walls or forti