‘Floating city’ this seems like something you would see in a super hero movie (BATMAN earthy - fits in with floral pattern -environment (link to futurism). Line can be seen in the top image holding the structure in place.
Frank Lloyd Wright's Fallingwater located in Laurel Highlands, PA. Fallingwater is a very special house that is built over a waterfall. Frank Lloyd Wright, America’s most famous architect, designed the house for his clients, the Kaufmann family.
Futuristic oceanscapers are floating villages from algae and plastic waste Aequorea Carbon-free printed oceanscaper by Vincent Callebaut – Inhabitat - Green Design, Innovation, Architecture, Green Building
"French fries building" - Victor Enrich is a Spanish photographer who rips all the science from architecture to create surreal and whimsical variations on existing buildings (her the Orchid Hotel of Tel Aviv)
25 Fantastic Architectural Designs for Green Living in Floating Cities
Zaha Hadid Designs a Superyacht for shipbuilding company Blohm+Voss, reaching 128 meters in length, and a supporting structure resembling the organic ecosystem below. The form appears dynamic, resembling the flow of water.