Where the sleeping monsters of Scotland's oil industry are left to rust.

This man-made waterfall was designed to help improve access for spawning salmon.

The sign marks one of the endpoints to mainland Britain's longest overland travel route.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

A close look reveals that the Scottish monument is just slightly off-kilter.

Scotland's only funicular railway is also the United Kingdom's highest.

Designed to allow funerals to proceed over the River Dulnain.

The location of this historic castle was inspired by a donkey.

The remains of a grand castle that may have inspired Bram Stoker's Dracula.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

Several bricks indicate the various flood levels this crossing has survived over the centuries.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

A unique tribute to the millions of animals who served and died for the British military.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

The bust of a 15th-century Albanian leader in the middle of London.

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

Believed to be inspired by the Trevi Fountain in Rome.

A petite castle folly in the English countryside.

This trio of neolithic stone monuments are fabled to be a king and his knights that were petrified by a witch.

Deep in the countryside lie the remains of one of the grandest Roman dwellings in Britain.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

The eccentricities of a former lord include painted pigeons of his manor house, a series of pointless plaques, and a folly built simply to peeve the public.