A woman views a painting by American artist George Condo entitled “Jesus” on October 17, 2011 in London, England. (Photo by Oli Scarff/Getty Images)

Festive characters perform during Harrods 26th Annual Christmas Parade on November 5, in London, England. (Photo by Steve Finn/Harrods via Getty Images)

The Bratz Rock Angels are displayed at the Dream Toys 2005 Pre-Christmas Expo on October 5, 2005 in London. (Photo by Daniel Berehulak/Getty Images)

The 150-square-metre Villa Ypsilon was designed by London- and Brussels-based firm LASSA, which is headed up by architects Theo Sarantoglou Lalis and Dora Sweijd.

Two Teddy Bears from the 1920's sit on display in the museum section of the Merrythought Teddy Bear shop on April 5, 2011 in Ironbridge, England. Established in 1930, Merrythought has been hand-making Teddy Bears for over 80 years in Shropshire. The family-run company is the last remaining British teddy bear factory and is launching its latest limited edition bear to mark the royal wedding. The Commemorative Royal Wedding bear is limited to 75 and comes after its popular Prince William and Catherine Middleton bears completely sold out. Merrythought has also been selected by the London Olympic Games organisers to produce the official teddy bears of the London 2012 Olympic and Paralympic games. (Photo by Christopher Furlong/Getty Images)

Cardboard cut outs of the faces of three candidates for the Republican nomination for the 2016 US Presidential election (L-R) Ted Cruz, Donald Trump and Marco Rubio, are seen set up on urinals in a pub in London on March 1, 2016 as part of an informal poll for customers to log which they dislike the most. Part of the satirical television show The Last Leg, customers at the pub are able to choose which urinal to use and then log their poll on a list on the wall afterwards. (Photo by Justin Tallis/AFP Photo)

A demonstrator with face painted in the colours of the Palestinian flag protests outside the Israeli Embassy in west London July 26, 2014. Foreign ministers from the United States, Europe and the Middle East called on Saturday for an extension of the 12-hour ceasefire between Israel and Hamas in the Gaza Strip, French Foreign Minister Laurent Fabius said. (Photo by Luke MacGregor/Reuters)

These are the ambitious plans which suggest skyscrapers of the future may house an entire city. The Endless City project is an award-winning proposal by sure Architecture, who propose turning skyscrapers into complete ecosystems. London is the proposed city for the mixed-use tower – which would feature huge ramps linking different sections of the structure. The company, whose design won the SkyScrapers and SuperSkyScrapers Competition, insist the structure would be a great space-saver in dense cities which have previously spread outwards rather than upwards. (Photo by Caters News)