Impossible Builds - Episode Guide

In Miami, follow the construction of one of the most complex skyscrapers ever to make it off the drawing board. Its design is so radical that it features its skeleton on the outside and construction experts have turned to a building material never before used in skyscrapers.

Can six sand islands, poking out of the Persian Gulf near Dubai, be transformed into the most luxurious holiday destination on earth? One man believes they can and he's risking tens of millions of dollars to prove it.

While some architects are looking up – others are looking down. Follow the build to make living beneath the waves into a reality as a team in Dubai attempts to construct a multimillion dollar floating house combining the best of land and marine design. Will they achieve the impossible?

Witness the construction of the skinniest skyscraper ever to make it off the drawing board on a plot barely bigger than a basketball court. Located in New York and rising from within the landmark Steinway Hall, the team will attempt to build 111 West 57th Street, the world's thinnest skyscraper, on the construction equivalent of a postage stamp to be one of the tallest in the city.

Over the top, ambitious, and nature-defying, China's incredible Deep Pit Ice and Water World near the city of Changsha will transform 37 acres of sub-tropical quarry into a sub-zero ski resort. The construction team will have to battle the worst nature can throw at them. But if they can pull it off, they'll make science fiction a reality.