Deep in the woods sits this octagonal folly – with a real surprise inside. The ceiling and walls of the main room are festooned with shells, while in the basement is a cold plunge pool.

This very clever scale model of a French chateau sits on a hill above the River Trent in the middle of the Lincolnshire countryside.

A Georgian folly within an outstanding Picturesque garden, the Ruin was built in about 1766. On the edge of a steep wooded gorge, it was one of several buildings scattered across the gardens.

This tiny pavilion was a majestic grandstand for the enclosure in front. It is a mature expression in miniature of all that was best in Tudor and Jacobean architecture.

Whiteford Temple is an ornamental granite folly with views towards the Tamar Estuary. It was built in the 18th century for Sir John Call, a military engineer who had made a fortune in India.

Villa dei Vescovi is a Renaissance villa nestled in the vineyards and orchards of the Euganean Hills. One of two rooftop apartments, with views of the elegant orchards.

Villa dei Vescovi is a Renaissance villa nestled in the vineyards and orchards of the Euganean Hills. One of two rooftop apartments, with views of the elegant orchards.

Winsford Cottage Hospital, designed by Arts & Crafts architect C.F.A. Voysey, is full of the clarity of design and craftsmanship found in his country houses.

The Georgian House is an imposing and elegant 18th-century building on the alley leading to Henry VIII’s Real Tennis Court at Hampton Court Palace.

The Bunkhouse accommodates a group of up to 12 people. The sleeping arrangements are basic - you will need to bring sleeping bags and pillows.