This type of facility pertains to underwater facilities, such as up-side-down sky scrapers that have an upper layer that floats on the water and uses compression of helium to manage buoyancy. Other technologies that pertain to this facility type may include underwater inner-facility waterfalls and building integrations with the aquatic environment, such as waterfalls that flow through the building at horizontal levels, waterfalls that are controlled with gravity fields, and observation decks that stretch out into the water away from the building and/or to attach multiple buildings together. This facility may use the combination of an above-ground entry point that allows entry while keeping the buoyancy and the use of multiple airlocks and pressurization / depressurization to ensure the pressure inside the building doesn’t change. The facility may also use underwater ports that connect with submarine vehicles.
