This lovely ancestral home inspired the author D.H. Lawrence, and features a tunnel made out of a living willow.

A million and a half tons of earth were used to create one of the world's largest land sculptures.

Built to hold the worst of the worst of the Nazi war prisoners.

This beautiful example of Victorian engineering is the oldest water-balanced funicular anywhere in the world.

This charming railway is one of the oldest and steepest funiculars in England.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

The nearly 200-year-old folly has a secret spiral staircase hidden in one of its pillars.

This sculpture is an instrument played by the swell of the seas.

Built by the patron saint of illusionists this Elizabethan manor house is riddled with secret cubbies for hiding priests.

This home on a quiet suburban street is completely covered with vibrant mosaics.

A network of concealed passageways lies within a busy London Underground station.

An intriguing three-sided folly is a testament to one man's devotion to Catholicism and the number three.

The sculpture is made of more than 100,000 knives collected to raise awareness about violence.