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 fairytale cottage in a wild and beautiful glen, this diminutive former schoolroom makes a perfect hideaway or writing retreat for two, or even one.

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 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.”

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.

At the top of the hamlet of Coombe, Mill House overlooks the bubbling stream.

One of three Landmarks in the remote upland hamlet Rhiwddion, Ty Capel was built in 1860 for the slate quarrying community that once lived and worked here.

Mill House dates from 1700 and is mainly built of stone with a thatched and slated roof. No. 1 is the slightly larger of two cottages and has a wide fireplace in the sitting room.

Designed and constructed by James Mansergh and Robert Rawlinson, work began on Appleton Water Tower in 1877 to provide a clean water supply to the Sandringham Estate.

Coed y Bleiddiau is a small railway cottage at a remote private halt on the restored Ffestiniog Railway.

This 18th-century tower gives striking views of the historic market town of Richmond. Inside, three single octagonal rooms are decorated in an elaborate cocktail of classical and Gothic styles.

Freston Tower is a six-storey Tudor folly that looks out over the River Orwell. There is a single room on each floor with the sitting room at the top to take advantage of the unrivalled views.

The House of Correction, built in 1611, sits on the site of a medieval castle. A small prison such as this was intended to house minor offenders, today, only the grand entrance survives.

Tucked away in the pinewoods of the Shuttleworth Estate, Keeper’s Cottage is a model gamekeeper’s home from the late 19th century. The estate was once renowned for its shooting parties.