These 12 concept mobile phone telephone booths recapture the isolation old public phones provided while enhancing the experience of conversing in the city.

Fossil fuels won't be around forever. Is the world prepared for alternative energy? Judging from these 10 amazing concepts, we'll be just fine.

Great architecture deserves to be seen, even if it will never be built. This revolutionary project puts visionary buildings right into the palm of your hand.

Installed for the 2012 TED Conference in California, 'The Self-Assembly Line' is an architectural structure that was inspired by viruses.

Public transportation is both the savior and the bane of the urban commuter. These six ideas stand to transform the way we move around the city of the future.

Bionic limbs, RFID chips that unlock doors and brain implants that can control computers without touching them - these 12 biotech advances are amazing.

Robotics holds almost limitless possibilities for our future. These 10 recent advances in robot technology show us just how far we have already come.

How would you like to forget about schedules and simply hop aboard the next passing cloud to leisurely float away? This odd concept proposes exactly that.

In a future world of vast military destruction, world powers have begun using militarized insects to vanquish enemies. Little did we know it would backfire...

Some are destined to remain unbuilt and others will open any day, but all 12 of these theme park and roller coaster concepts offer thrills - and cool artwork.