A folly built to satisfy a gentleman's bet that he could drive his horses through the eye of a needle.

This folly built to commemorate an aristocratic victory over Catholic rebellion plays tricks on the eye.

An oddly shaped tower built to mark the acquittal of Admiral Keppel in a controversial 1770s case.

The tallest freestanding structure in the United Kingdom.

The largest preserved walking dragline excavator in Western Europe.

The bizarre headgear looks like it was made for a fool, not a king.

Though much of the castle was robbed of its stones, the underlying earthworks are among the best-preserved in England.

A stretch of land where the sour-sweet vegetable is cloaked in darkness and grows so fast you can hear it crack, squeak, and pop.

Once a farm where patients tilled the soil, this asylum lost its workforce when overmedicating became common practice.