Season 4, Episode 1

UFO, Flower, Ship Shape

This amazing assortment of homes from all over the world includes a Californian desert house open to the sky, a Japanese sliver of a residence like a shark's fin, a home in Australia that is more campsite than house and one in Colorado that looks like a UFO has landed. A German residence spins like a flower turning to the sun, an English home is a dream come true for train lovers and Russia has an apartment that wants to be a palace. A Connecticut home is like a concrete colossus while an Italian one has tiny turrets, Belgium goes for a super-sleek glass house and a home shaped like a ship has run aground in Washington.

Season 4, Episode 2

Canyon, Sculpture, Bridge

This amazing assortment of homes from all over the world includes a giant converted synagogue in Miami, a Dutch residence built to mimic an American canyon, an inhabitable sculpture in Canada and a Spanish home that stands tall on stilts.

Season 4, Episode 3

Shipwreck, Leaf, Butterfly

This amazing assortment of homes from all over the world includes a house built to mimic a leaf in Utah, a Russian residence that looks like a shipwreck, a suburban home with lofty ambitions in Canada and a Portuguese residence that runs up a hill. A home in Oregon fights nature with nature, an Australian House soars like a butterfly and a Japanese residence is to die for. Arizona has a home blasted clean out of a mountain while Italy has an upside down one, there's a magical house in a German forest and an English castle has been home to the same family for 27 generations.

Season 4, Episode 4

Sandbag House, Modern Igloo, Boomerang, Gothic Tower

This amazing assortment of homes from all over the world includes a hi-tech party house in California, an English residence inside a Gothic tower, a Swedish island home that was used in a Hollywood movie and an Australian house shaped like a boomerang.

Season 4, Episode 5

An Ark, Spider and Tree-Hugger

This amazing assortment of homes from all over the world includes a house in New Mexico that looks like a piece of pottery, a Japanese home more like origami, a psychedelic Danish condo and an 860 year old English abbey. Australia has a very modern old boathouse, Florida goes for colorful whimsy and four kinds of home become one in Spain. A South Korean house pays tribute the past and honors the future, a home in Florida resembles a spider in the sand, Germany has a modern Noah's Ark and a Canadian residence is a real tree-hugger.

Season 4, Episode 6

Egg Shaped, Laser, Jungle

This amazing assortment of homes from all over the world includes a South African house with an all-seeing eye, an egg-shaped floating home on an English river, a New York residence that explodes with colour and one with a seven-level playground in Belgium. Cave-dwelling takes on a whole new meaning in Italy, Western style collides with the Middle-East in a Californian house and tradition is laser-cut in a Russian home. An Australian townhouse hides in the jungle while a Korean home puts on a steely face, there's a black and white answer to a building problem in Germany and smart salvage has created a rough, tough residence in New Mexico.

Season 4, Episode 7

Fairy Tale, Veiled, Whale

From the dazzling to the daring to the downright bizarre, go inside extreme homes across the globe. We're inside a lit up mansion in Florida, an organic hillside house in Spain, a fairy-tale apartment building in Germany and a Californian cliff house build to weather the sea air. There's a floating residence on the River Thames , a home in Japan that's only 13 feet wide and one built to mimic a breaching whale in Australia. A Canadian house is designed to block out harmful rays while a house in Holland is clothed in a fine white veil. A Portuguese home built like a military bunker and a Californian residence hides luxury amongst raw rocks.

Season 4, Episode 8

Waves, Airship, Chaos

From the dazzling to the daring to the downright bizarre, go inside the world's most extreme homes. This amazing assortment includes a house curled up in the Arizona heat, a Danish residence designed to look like two giant waves, and an old English hideaway for American war heroes. There's a country house that looks like a miniature airship in Russia, a modern twist on an old home in New Mexico and a two-for-one residence in Japan. A South African home looks giraffes in the eye and a barn in Italy hides a luxurious home. Art meets chaos in a strange home in France, and New York City hides a futuristic factory.

Season 4, Episode 9

Mushroom, Pie, Foam, Fins

From the dazzling to the daring, to the downright bizarre, we're inside the world's most extreme homes. This amazing assortment includes a Californian house covered in wrap-around art, home in Spain shaped like a slice of pie, a space in Australia where wooden fins block the sun,and a Japanese home shaped like a mushroom. We go to a modern jungle cabana in Mexico a a foam covered house in New Mexican, and a castle in Belgium. Seventeen domes come together to form a home in Italy, a triangular house perches on a tiny sliver of land in Canada, a residence in Oregon looks out through the "eye of God" and Scotland has a home in a 200 year old observatory.

Season 4, Episode 10

Abstract, Flying, Waterfall

From the dazzling to the daring, to the downright bizarre, we're inside the world's most extreme homes. This amazing assortment includes a house in Idaho that dangles off a cliff, an old home in The Netherlands that has been turned into an abstract work of art, a California party pad with water running through it and a Japanese home made from a box and a ball. San Francisco has a zigzag house, a modern home in Italy started life 300 years ago as a rustic tool shed and a South African residence looks like it is made of twigs. An Australian home loves straight lines while an ancient residence in France used to accommodate monks and a house in Wales flies over a river and a Canadian home embraces a waterfall.

Season 4, Episode 11

Storybook, Eyebrow, Boxes

From the dazzling to the daring, to the downright bizarre, we're inside the world's most extreme homes. This amazing assortment includes a Mexican house that literally lights up. a fairy-tale cottage in Canada fit for a hobbit in Canada, an Australian home that soars over stormy seas and a home shaped like a pile of boxes in Korea. A raised eyebrow adorns a home in Oregon while a modern designer graces a French chateau. Eleven cubes stack up for a house in Spain, traditional decoration goes modern in Russia, and history comes to life in Italy. A house in Colorado was inspired by barnacles and there's a space-station home in the Connecticut woods.

Season 4, Episode 12

Giant, Plastic, Surprise

This amazing assortment of homes includes a plastic home in Ireland, a Japanese home that resembles a slice of pie, an Australian home floating in the treetops and an old tin shack in California that hides a life of luxury.

Season 4, Episode 13

Magical, Puzzle, Palace

From the dazzling to the daring, to the downright bizarre, we're inside the world's most extreme homes. This amazing assortment includes a Californian house which is a movie star, a factory home in France complete with industrial machinery, an Australian residence in the shape of a sand dune and a magical kingdom in a German city. Montana has a little box on the prairie, a Korean home pixilates family life, Denmark has a house like a 3D puzzle and there's one with three towers and a drawbridge in Scotland. An Italian palace has had an 800 year makeover, X marks the spot for a house in Spain and a home in Florida is a treetop woodland getaway.

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