These crumbling Nazi artillery bunkers are now fair game for massive graffiti projects.

An undulating wicker beast looms peacefully atop a sand dune in Belgium.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

Two small chapels housed inside an ancient tree.

An aluminum skeleton brings Chinese mythology to the French shore.

One of the great treasures of Neolithic art lies within this carefully constructed pile of rocks.

Rows of multicolored bathing huts paint the sand dunes with pops of color.

An abandoned beach resort in Normandy reclaimed by artists.

A beautiful lighthouse with as many steps as days in the year, as many windows as weeks, and as many levels as months.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

Collapsed television tower finds new life as a control tower for boat races.

This 2,000-year-old tree inspired the nursery rhyme "Rock-a-bye Baby."

Ruined castle with subterranean vaulted Goblin Ha' or "Goblin Hall."

Translating as "The Jump of the Girlfriend," this stunning waterfall has a tragic legend behind it.

A curious structure built just for the birds.

An enormous concrete structure built over a nuclear crater.

Enter the world under the hill at this ancient UK burial chamber.

Thanks to both terrific preservation and historic vandalism this ancient site is known as the "Heart of Neolithic Orkney."

FIFA deemed this isolated field one of the most remarkable places to play the sport.

A red-brick beacon stands against the tempestuous Atlantic, on the windiest site in the United Kingdom.

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

A magnificent, iconic stone tower in the Scottish Highlands.

The ruins of a medieval seminary some say is the oldest university site in Scotland.

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