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Finnish retreat designed with nature in mind

Guerrilla artists throw up clever piece on California dam

Test your geography knowledge with The Atlantic's Google Earth puzzle

Can the Ultra-Ex project save Cleveland?

Alex MacLean goes airborne to document the complex relationship between humans and nature.

Canadian project converts waste to clean energy.

Michael Pollan experiences the magnetic social power of the cob oven.

Norman Foster's visionary city rises outside Abu Dhabi.