In Spain, Caroline and Piers see a farmhouse made of steel, a home with a floating pool, a circular sanctuary anda shared dwelling for three sisters. A tour of India includes an airy fortress, a fluid home with origami-like roofs, a new take on a tea plantation house and a lovely patchwork property. Piers and Caroline travel to Norway to see a charming family cottage, a summer house built around a rock, a daring concrete home and a rugged retreat. Israel serves up a palatial family estate, a pastoral property that filters the elements, a house built on a cliff and a home with three gardens.