MOSCOW, January 15 (Sputnik), Ekaterina Blinova – "A Japanese company has come up with a bold and novel solution to the problems facing built-up coastal cities: sink a 500-metre wide sphere underwater that would support a tower filled with homes, stores, offices, a hotel and research facilities," the Independent reported.

Would you live under water? Check out these crazy designs for the worlds first underwater city! #design #oceanspiral http://t.co/5dUlMZ6ZRi — SomeOne/Else (@ElseOneSome) January 7, 2015

Shimizu Corporation, Japan's leading architectural and civil engineering firm is developing a bold project, dubbed "Ocean Spiral" city together with numerous experts and national agencies. The $26-billion-worth construction is designed to be built in the water.

The concept is meant "to take advantage of the limitless possibilities of the deep sea by linking together vertically the air, sea surface, deep sea and sea floor," the official press-release published on the company's website explains, adding that the deep sea "offers enormous potential" for earth's biosphere.

According to Shimizu specialists, there are at least five reasons for developing the project: the deep sea city can provide its would-be citizens with food, an unlimited potential of energy, fresh water, the limitless volume of natural resources and treat carbon dioxin emissions. Pollutions from the land would be transferred down to the sea floor, where microorganisms could transform it safely into methane gas.

The city's entrance would be located at 200 meters below sea level and would lead to a spherical construction (Blue Garden) containing a hotel, stores, convention and research facilities, apartments, officers and scientific laboratories.

"Blue Garden is a sphere measuring 500m in diameter that floats in the deep sea like a spaceship. This city is even safer and more comfortable than the land-based ones we all know," the project creators insist.

Its inhabitants would be able to move deeper into the ocean via an "infra spiral." Remarkably, the city is expected to be completely self-sufficient, using the unlimited resources of the deep ocean.

"Breaking free from past patterns of land development, which have focused mainly on efficiency, this plan is intended to promote true sustainability while maximizing use of the deep sea’s resources," Shimizu engineers claim