The AMANDA collaboration, which includes researchers at Berkeley, four other U.S. institutions, one German, and two Swedish institutions, is designing and building a high-energy neutrino observatory to answer fundamental questions about high-energy astrophysics and particle physics. In several annual expeditions, using a powerful hot-water drill, we have deployed ten strings of several hundred photomultiplier tubes at depths of 1.5 to 2 kilometers in the highly transparent ice below the South Pole station. Accurate recording of the arrival times of photons emitted as Cherenkov radiation along the trajectory of upward going muons will enable us to infer the trajectories of neutrinos (themselves invisible particles) passing through most of the Earth and then converting into muons. Particles other than neutrinos are filtered out by the Earth. We plan to expand AMANDA to a sensitive volume of about one cubic kilometer. Such a gigantic array will image neutrinos from individual Active Galactic Nuclei, as well as search for neutrinos from annihilation of supersymmetric particles called neutralinos which may make up the dark matter of the Universe. If astronomical experience at other wavelengths is a guide, AMANDA may discover entirely new phenomena.