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.

The Birdhouse was designed in 1783 by the architect James Wyatt in a spectacular natural setting that could serve to define the Picturesque movement. Today, it is a romantic hideaway for two.

The Chapel is a tiny grey granite building in the rural hamlet of Lettaford, a settlement on the edge of Dartmoor that has been lived in since at least 1300.

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

Listed Grade II*, the dairy was conceived to represent a tiny Italianate chapel topped with a bell tower, and with four corner pavilions.

Houghton West Lodge is one of four houses that guard the approaches to Houghton Hall,  one of England’s finest Palladian houses and once home to Britain's first Prime Minister.

A fine, two-storey Jacobean porch salvaged from a great house once beloved of the poet and playwright John Dryden but now lost.

The tower was built as a folly in 1821 with a pretty sitting room on the first floor. The third floor was added in 1943 by the Germans as an observation point, with views in every direction.

A clock tower overlooking the Exe estuary, ‘like a sleek racing yacht turned through 90 degrees and planted in the beach.’

The Pigsty’s classical design was supposedly inspired by Squire Barry’s travels around the Mediterranean in the 1880s and offers striking views of Robin Hood’s Bay.

A tiny, circular tower standing on the boundary of a cricket pitch, Prospect Tower was built around 1808. Approached along an avenue of walnut trees, Lord Harris called it his “whim.”

The Summerhouse stands in beautiful woodland on the Shuttleworth Estate. The outstandingly fine brickwork of this foursquare folly is likely to date from the early 18th century.

This beautiful little pavilion has two distinct faces and has a breath-taking panorama. Approached from the wood, this rustic cottage with a thatched roof houses an elegant interior.

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.

No.1 Shore Cottages is one of a terrace of simple fishermen’s dwellings reached by footbridge. Its front door opens onto the beach overlooking a beautiful cove, a favourite of birds and seals.