World's Most Secret Homes

A look at a Norwegian mountain cabin accessed by helicopter in winter, a California family retreat embedded into its rocky surroundings, a concealed jungle lodge high in the mountains of Brazil, and more.

A 300-year-old Scottish ruin is brought back to life by an owner, who had the ingenious insight to build a unique modern home within its crumbling walls.

An exploration of a family home in Brazil that is completely hidden in nature, a wartime bunker on the Isle of Wight in the UK that's been tastefully transformed, and an ultra-modern home hidden behind a sleek façade in San Francisco.

Explores a modern home commissioned by Lord Rothschild in Buckinghamshire, England, built out of flint, a glass residence nestled next to a scenic lake in Switzerland, and a tree house that serves as a dream getaway for a family of five in New York.

An exploration that uncovers the world's most impressive escapes, including a home built into a lake.

An enchanting villa in the Spanish countryside; an ultra modern cliff-side retreat in the wilds of Switzerland; a cabin that resembles a pair of binoculars perched on a cliff in rural Quebec; a woodland retreat in Portugal.