An amphitheater is an excellent choice if your world features entertainment or other large gatherings. Stadium and arena are synonymous with amphitheaters and are theaters in the round, with tiered seating arranged around a stage at the hub. Typically, this type of structure is open-air. However, in the metaverse, what’s overhead is only limited by your imagination—a map, galaxies, a light show, or a tremendous gilded and domed ceiling.