An ambitious plan to build a "Freedom Ship" capable of housing 50,000 people on a free-floating 'nation' is seeking $10 billion in funding.
The plan would be to build a ship more than a mile long, and include on its docks shops, homes and businesses, as well as an airport and a dock for cruise ships.
Other amenities would include a baseball stadium, an aquarium and schools.
According to its early designs, the ship would be 25 storeys high and house thousands of people permanently. If built it would be the largest vessel to ever sail the ocean.
Freedom Ship International director and vice president Roger M Gooch said he is confident the project can raise $1bn - enough to start construction - and then will seek another $9bn as it moves forward.
"The Freedom Ship will be the largest vessel ever built, and the first ever floating city," Gooch told the NY Daily News.
"This will be a very heavily capitalised project and the global economy in the last few years hasn't been too inviting for unproven progressive projects like ours."
The company, based in Florida, said that the ship will never have to dock, and will sail constantly.
Here's the pitch:
"Envision an ideal place to live or run a business, a friendly, safe and secure community with large areas of open space and extensive entertainment and recreational facilities. Finally, picture this community continually moving around the world. You are beginning to understand the Freedom Ship concept of a massive ocean-going vessel."
Best Itineraries: Princess Cruises
The Sapphire Princess Cruise Ship docked outside the Circular Quay in Sydney, Australia.
Best For Adventure: Lindblad Expeditions
The Lindblad Expedition Ship National Geographic Explorer pushing through pack and sea ice in Antarctica in the summer months
Best Value-For-Money: Azamara Club Cruises
Al fresco dining on board the Azamara Quest in Sorrento, Italy.
Best For Families: Disney Cruise Line
Fireworks light the early morning sky as the Disney Dream, Disney Cruise Line's newest ship, arrives from Bremerhaven, Germany, Tuesday, Jan. 4, 2011, to her home port of Port Canaveral, Fla. The 4,000-passenger cruise ship will make her maiden voyage on Jan. 26.
Best For Luxury: Regent Seven Seas Cruises
A Regent Seven Seas cruise liner in Moorea, French Polynesia.
Best Ship Refurbishment: Carnival Sunshine
Here, the Carnival Sunshine is moored in Dubrovnik, Croatia, Tuesday, June 18, 2013. Originally constructed in 1996 and named the Carnival Destiny, the ship recently underwent a $155 million renovation that added a host of new features and enhancements including an additional 182 staterooms.
Best Entertainment: Royal Caribbean Cruise Line
Royal Caribbean Navigator of the Seas pulls out of New Orleans on the Mississippi River.
Best Dining: Oceania Cruises
Oceania's, 1,250-passenger cruise ship Marina is shown docked at the Port of Miami in Miami, Friday, Feb. 4, 2011. Built in Italy, Marina arrived at the port early Friday morning from Barcelona, Spain. The luxury line's new ship was christened Friday and then departs Tuesday on the first of two 18-day Panama Canal transits that include California stops.
Best Standard Cabins: Celebrity Cruises
Celebrity Cruises' Reflection Liner
Best Suites: Oceania Cruises
Oceania Cruises' new ship, Marina, arrives in North America for the first time at dawn on Friday, Feb. 4, 2011 in Miami after her maiden voyage from Barcelona, Spain which began Jan. 22nd. At 66,000 tons and carrying 1,250 guests, Marina features 10 dining venues including Jacques, the first namesake restaurant for Chef Jacques Pepin. Other highlights include a full-service Canyon Ranch SpaClub, Bon Appetit Culinary Center, Owner's Suites furnished exclusively in Ralph Lauren Home, and a grand stairway custom-crafted by renowned French glass master, Lalique.
Best Inside Cabins: Norwegian Cruise Line
Norwegian Cruise Line's new cruise ship, Norwegian Breakaway, sailing from Southampton, England, to New York. The ship arrived Tuesday, May 7, and is scheduled to be christened Wednesday, May 8. The art on the exterior hull showing a New York City skyline and Statue of Liberty was designed by artist Peter Max. The ship will homeport from New York.
Best Shore Excursions: Disney Cruise Line
The Disney Magic cruise ship returns to dock in Venice on July 3, 2013 in Venice, Italy. This is the first time since the ship was constructed in nearby Marghera and Ancona that is has returned to Venice after previously setting sail from Venice on July 1, 1998.The ship is in Venice as part of the Disney Cruise Line 2013 Mediterranean season and will return again later this summer. In 2014, the Disney Magic will return to Europe with Venice as its homeport for select sailings.
Best New River Ship: AmaPrima, AmaWaterways
The AmaWaterways river cruise ship AmaPrima in Vilshofen an der Donau, Germany.
Best For Honeymoons: Windstar Cruises
Motorized sail ship Wind Spirit of Windstar Cruises at dock in Gibraltar, U.K.
Best River Cruise Line: Viking Cruises
The Viking Odin, a Viking River Cruise boat.
Best Cruise Ship Bar: Martini Bar, Celebrity Cruises
Celebrity Cruises's Equinox in Turkey.
Best New Ship: Norwegian Breakaway
Best North American Homeport: Vancouver
Cruise Ship at Canada Place, Vancouver BC