From the dazzling to the daring, to the downright bizarre, we're inside the world's most extreme homes. This amazing assortment includes a Virginian space house, an ultra-cool townhouse on the edge of a steep hill in Germany, a plastic home in Ireland and a Mexican residence that looks like its walls have been bent by a giant. A Japanese home resembles a slice of pie while a vertical garden brings a Portuguese house to life and an Australian home seems to float in the treetops. A Russian residence pays tribute to tradition, a home in Arizona has a big surprise on the roof, a Canadian townhouse is stacked designer-high and an old tin shack in California hides a life of luxury.