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There are few cities in the world that fascinate architecture lovers as much as Brasília, the Brazilian capital built from nothing over an impressively short five-year span in the mid-20th century. When it was inaugurated in 1960, it was unlike any other city in the world, with a radical, artistic urban plan by Lúcio Costa, striking edifices by Oscar Niemeyer, and its avant-garde landscape design by Roberto Burle Marx.

These planes flying out of a nearby airport are a reminder of the estimated $13 billion international airport that had been planned and partially constructed on top of the seasonal wetlands native to this place.

Walking along the edge of a seasonally dry lakebed on the eastern outskirts of Mexico City, there is near perfect silence except for the occasional airplane that flies overhead.

Walking along the edge of a seasonally dry lakebed on the eastern outskirts of Mexico City, there is near perfect silence except for the occasional airplane that flies overhead.

Walking along the edge of a seasonally dry lakebed on the eastern outskirts of Mexico City, there is near perfect silence except for the occasional airplane that flies overhead.

In her Hugo-finalist novel Record of a Spaceborn Few, Becky Chambers envisions a future where humanity travels the galaxy in generational ships, their entire civilisation dependent on a well-oiled system of reusing and recycling resources. Every waste product is expertly crafted into something else, sustaining the space travellers for generations.

The buzz in residential real estate is all about sustainability, and the good news is there are a plethora of ways to improve the efficiency and durability of a home.

Officials and planners in Las Vegas say they are working to reduce rising temperatures in a city where paved areas create a warmer environment than plant-covered or rural desert areas.