Even quintessentially British tea cozies have their radical fringe. These 10 extreme tea cozies show what happens when natty knitters think outside the bag.

The exterior is a rectangular box made of heavy concrete balanced on stilts, but step inside and you'll see an unexpectedly amorphous all-white interior.

All around the world, slides are coming in from the playground and taking up residence in homes, offices and even art museums, adding some fun to everyday life.

These 18 staircases seem to hover in mid-air with no visible support, hanging from hidden brackets, impossibly thin poles, bird nest-like cages or walls of glass.

The top three winning designs at the [D3] design contest in Cologne, Germany including a couch, table & chair are transformable, flat-pack and low-waste.

Sleep in a coffin like a vampire at Berlin's Propeller Island Hotel, a classic car at the V8 motor-themed hotel in Stuttgart or a treehouse in Görlitz.

As a raw material for crafting, bottle caps are given a new life as part of gorgeous and surprisingly functional works of art.

Typically covered by 'prettier' materials, plywood and other manufactured wood surfaces take center stage in these 13 architecture and interior design projects.

German architecture studio Bembé Dellinger brings an ultramodern touch to a lakeside suburb with 'House R', a cantilevered daylight-filled all-white home.

Stone houses invoke thoughts of dark, cold, and damp places full of creepy creatures. Cave homes now have all the warmth and amenities of any modern household.