Space Elevator

It ’s an elevator to climb up to a geostationary orbit(GSO) over the earth (36000km above the sky) like “Jack and the Beanstalk”.

From images of amazon.com

OCEANLAND PRE-1

OCEANLAND PRE-1

OCEANLAND PRE-2

OCEANLAND PRE-2

Seasteading
Similar Concept

Shimz Corp.'s GREEN FLOAT

Sea Level Rise

Sea Level Rise