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

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.

Canons Ashby is a 16th century house, hardly touched since 1710. Our Landmark is at the top of a tower, and its light and pretty rooms have views of the beautifully restored gardens.

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.

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.

45a Cloth Fair is a fine Georgian house close to Smithfield Market.  It is an oasis of relative calm in central London.

The surviving cross-wing of a late-medieval timber-framed hall-house in a peaceful woodland clearing in the Kent Weald.

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.

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.

Marshal Wade’s House stands in the centre of Bath, neighbouring the Roman Baths and Bath Abbey. It offers exceptional views of Jacob’s ladder, the famous carving on the Abbey’s west front.

North Street is the earliest planned industrial housing in the world and now part of a UNESCO World Heritage Site. The terrace was built in 1771 to house workers from the new cotton mill.

Deep in the Surrey countryside stands a gatehouse built in the 19th century by one of this country’s most influential and talented architects, A W N Pugin.

The Pineapple is one of our most unusual-looking Landmarks; an elaborate two-storey summerhouse with a pineapple-shaped dome. It is an eccentric work of genius with the finest masonry.