Is there something strange about the exterior of that building? This Paris facade and others like it around the world are actually hiding ugly infrastructure.

In the near future, many stores might not even have physical products to take home - we'll just scan codes with our smart phones and have them delivered.

The demolished Kowloon Walled City in Hong Kong was once a teeming, crime-ridden 6.5-acre metropolis packed with 50,000 people; now it's a peaceful park.

London's iconic Battersea Power Station, which has been abandoned since the 1980s, could turn into a theme park and museum in this wild rollercoaster concept.

This skyscraper proposal isn't just a functioning urban landfill tower that can also help power the city with gas; it's a commentary on our wastefulness.

These 12 jaw-dropping basketball courts stretch the limits of Dr. James Naismith's original vision far beyond the prescient gym teacher's wildest hoop dreams.

Planned for a rural area outside Chengdu, 'Great City' will be entirely car-free, organized around central vertical housing with green spaces easily accessible.

It started with trap streets and phantom settlements, introduced to through off the maps of copycats - but what about trap rooms and other indoor spaces.

Old shipping containers form a unique bridge in an environmental park in Israel, spanning the gap between new and old in a beautiful way.

Normally, urban design is done with death and destruction in mind - but prevention, rather than facilitation, is the focus. This unique mini-city was made to be destroyed.