A new development featuring Europe's tallest hotel is underway on a man-made island that will be connected through a glideway and overseas walkway with the city of Barcelona, Spain.

The Barcelona Island project has entered the next phase following an agreement between investment company Apogee Investors and Mobilona LLC to manage the financing.

With the initial investment projected at €1.5bn (US$2bn, £1.3bn), Mobilona plans to construct the first of its kind 'Space Hotel' on Barcelona Island which promises to offer guests an "out of this world" experience through immersive building technology and the integration of the Internet of Things (IoT). All suites and residences will be equipped with immersive wall and surface displays that provide panoramic impressions of the universe.

The 984ft (300m) Galaxy Tower, which will house the hotel was designed by architect Erik Morvan and will feature 2,000 hotel suites and residences.

The hotel's highlights include the world's first 'zero-gravity' spa. Spa guests are taken in a Space Glider to the spa which will be located inside a high altitude park and tropical garden on top of the Universe Tower.

Hostesses will provide a range of health, beauty and wellness treatments. Afterwards guests can visit the Space Observatory and enjoy unobstructed views of stars in the night sky.

A private infinity pool is also available that allows guests to watch the Orbit Tower's rotating ellipses shift towards the sun in 24-hour phases.

The project is managed by Mobilona's Global CEO Jerome Bottari. He said: "Hotel guests will be able to participate in a Space Training to experience a form of weightlessness in a vertical wind tunnel.

"Immersive displays inside Mobilona Space Hotel will provide guests with stunning views of some of the most remote galaxies in our universe. When guests are ready to return from their space exploration, they will be able to turn off all transparent glass displays with the push of a button."

The man-made island off the coast of Barcelona will be built by a multinational consortium.

Mobilona has made a commitment to improve the climate by operating Barcelona Island with zero carbon emissions and by producing green energy for the people of Barcelona.

Jerome Bottari is also responsible for the development of Mobilona Space Hotels in Los Angeles and Hong Kong. The three new hotels represent an estimated value of over €4.6bn (US$6bn , £3.8bn).