No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

In an arboretum with hundreds of memorials to the fallen, this one might be the most poignant.

A poignant memorial to the 106 coal miners killed in three major accidents in Derbyshire.

This oak sculpture at the edge of a small woodland is nine feet tall and shrouded in mystery.

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

Originally intended as a temporary installation, this sculpture is now a permanent part of a stunning Scottish beach.

This tribute to Sunderland's mining past stands outside the home of its football club.

This ruined folly was originally built to honor a failed American state that would have become "Westsylvania."

The ghosts of Britain's telecommunication past sit rusting away in a small village in England.

A sturdy relic of Britain's once crucial gunpowder industry is now a haunting Cornish ruin.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

A quartet of rusting satellite goliaths are all that remain of a communication network that protected Britain from German and Russian air strikes.

This shell of a historic manor house on the Isle of Wight is said to be the most haunted site on the island.

The rust covering this old mine's abandoned buildings matches the red pigment it once produced.

This historic abandoned train station looks like a stop for ghost trains.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

This former abandoned hospital, a complex of stunning 19th century buildings, once housed 2,000 psychiatric patients.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.

What was once England's second-richest abbey is now a haunting ruin.

This abandoned gun tower was built to defend the River Thames from a French naval attack.

The abandoned fishing village was swept right into the sea.

A spectacular disused railway viaduct in a beautiful countryside nature reserve.

One of Scotland's most important modern structures, it just made the '100 Most Endangered Sites' list.