These skyscrapers are built out of wood

At the 2013 eVolo Skyscraper Competition, a trippy entry called Big Wood made waves and earned an Honorable Mention.

This green building beats the heat

Lucknow, India, is home to Bara Imambara, a building constructed in 1784 that contains what is believed to be the largest arched hallway in the world. 

In Thailand, a deep green vision for saving an historic city

The city of Ayutthaya, Thailand, was founded when King U Thong ran there to escape a smallpox outbreak in Lop Buri way back in 1350 and proclaimed it the capital of his kingdom. 

Subtropical home and gallery keeps its cool via geothermal

We've seen builders and architects accomplish some amazing feats with geothermal heat wells — chief among them, achieving Passive House certification for a duplex in Ottawa, Canada, the world's fourth coldest capital city. 

This bubble skyscraper purifies drinking water

From the 2010 eVolo Skyscraper Competition comes a design that uses "mangrove cities" to purify drinking water. 

Moon skyscraper concept: Man as termite

In eVolo’s 2011 Skyscraper Competition, an entry title Moonscraper, by Luis Quinones of the United States, won honorable mention for a concept that has, so far, been found only in the pages of science fiction.

Architects design the anti-skyscraper

During the Industrial Revolution, humans moved out of rural areas and into the cities, where it was easier to access factory jobs.

Water world floated as sustainable refuge

From eVolo’s 2012 competition comes a floating city designed to serve as a refuge for those who survive some unimaginable apocalypse of nature, a final war, or whatever coup the end days might bring.