Piers Taylor and Caroline Quentin explore extraordinary homes built in mountain locations.

Piers Taylor and Caroline Quentin explore extraordinary homes built in forested areas.

Piers Taylor and Caroline Quentin explore extraordinary homes built in coastal locations.

Piers Taylor and Caroline Quentin explore extraordinary homes built underground.

Piers Taylor and Caroline Quentin travel to Portugal, where they discover four extraordinary homes built with great design and craftsmanship.

Architect Piers Taylor and Caroline Quentin travel to Switzerland in search of four extraordinary homes. They begin their journey in a tiny hamlet called Jeurs and visit a four-bedroom house, before travelling to Brissago to see a property with views across Lake Maggiore. Next, the pair head to a remarkable 'S'-shaped home outside of Zurich, before reaching the final house overlooking Lake Lucerne.

Piers Taylor and Caroline Quentin head to Japan, where they discover four extraordinary homes, built with great craftsmanship, combining high tech and a deep respect for tradition. Properties include the 'Glass House for a Diver' on the coast at Etajima, an all-glass building inspired by the chambers of an ants' nest, with rough concrete blocks chosen to surround the delicate home.