World's Most Secret Homes

A Norwegian mountain cabin that is so remote it is only accessed by helicopter. A family retreat embedded into rocks in the Californian desert. In Brazil, an epic jungle lodge.

A 300-year-old Scottish ruin that's been brought back to life. In the Sierra Nevada mountain, a striking angular home built from zinc and glass. In Sardinia a stunning waterfront villa. And in Germany, a wartime bunker that lay abandoned for 70 years

In the Cotswolds, UK, a unique home built into a lake. Lake Ontario, a home that resembles an ocean liner, and then to Portugal, where in land, a ruin has been transformed into a minimalist's dream with a pool concealed in the roof.

Head to the Serra Da Mantiqueira Mountains, Brazil, to explore a 2000 square metre, grid shaped family home hidden in nature, then visit a wartime bunker on the Isle of Wight in the UK that's been transformed into an ultra modern home.

A striking modern home has been built out of flint, and then to Switzerland to see a sleek glass residence next to a scenic lake. Deep In the woods in New York State, a far-from-average tree house that serves as a dream getaway for a family of five.

Venture into the Spanish countryside to explore an enchanting villa. A cliffside retreat that is ultra-modern. In rural Quebec, a cabin that resembles a pair of binoculars perched on a cliff, and finally a woodland retreat in Portugal.

A futuristic villa built on the edge of a lake in Austria. A cabin perched on the edge of a river. A unique beachside house built into the rock, and in rural England a modern mirrored house, designed to blend into and reflect its rural setting.

Explore a palatial cliff-top villa complete with indoor and outdoor pools. A remote cliff-top home deep in West Virginia and then uncover a retreat built into rocks on the rural outskirts of Stockholm.