Main Page | See live article | Alphabetical index In Norse Mythology, Bifrost Bridge is the bridge leading from the realm of the mortals Midgård to the realm of the gods Asgård. The bridge itself is the rainbow and its guardian is the god Heimdall. The bridge is destroyed at the end of the world, Ragnarok. It was built by the Aesir. Alternative: Bifrost, Asbru, Asbru Bridge This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.