World's Most Extreme Homes

Victoria tours an old cave that's been transformed into a colorful rock house in Swaziland, a cool car house in Austria and a modernist shed house in Australia.

Victoria tours a beach-side Australian bungalow that's perched on a 49 foot pole, a home built in the shape of colorful snake in Mexico City and a funky conceptual house for the senses in Germany.

Victoria visits a salvaged-material tree house in rural Georgia, a cliffside modern home outside Johannesburg and an high style underground house that's completely self-sufficient in Germany.

Victoria tours a dramatic glass beach house on the South African coast, a fashion mogul's Mayan-themed oasis in the Bahamas and a magical mosaic masterpiece in New Zealand.

Victoria explores a century-old ferry boat in New York City that's been converted into a floating home, a Mexican house inside an old bread factory that's ready to take off and wave-inspired home in Swaziland.

Victoria travels to a remote cliff-top home in New Zealand with incredible views, an airy eco-friendly beachside home in Kenya and a colorful egg-shaped house in the middle of the Arizona desert.

Victoria discovers a colorful mosaic home with wild animals as neighbors in Kenya, a modern Italian castle in the clouds and a tented luxury home on the beach in New Zealand.

Victoria goes to a Portuguese home with a visual connection to the land, a highly stylized luxury mud house in South Africa and an underground hideaway in Spain designed to be a modernist spiritual retreat.

Victoria travels to a rotating dome home in New York with an organic feel, a regal mud-constructed residence on the Kenyan grasslands and a sporty home in Australia with a lap pool wrapped around the third floor.

Victoria discovers an historic Tasmania stone church that's been transformed into a huge open plan living space, a clever space maximizing, three-cylinder home in Tokyo and a creative couple's funky lake house in Austria.

Victoria visits a stylized high-speed home in Wisconsin, an elegantly choreographed home in the hills above Mexico City and a mountain-side chalet that's at the height of extreme design in Austria.

Victoria tours a German water tower that's now a stunning six-story home, a futuristic top floor addition in Austria and a spiral, handmade beach house in Australia.

Victoria tours an ultra-modern Mexico City home perched on a 100-foot tower, an anti-beach house built to blend in with the remote Australian landscape and a surrealist dome home in a traditional Spanish village.