The sculptural remains of the last home of a legendary Dada artist.

This charming English house was once the home of England's most famous poet.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

This sculpture commemorates Edinburgh's sister city and their respective celebrity dogs.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

Part museum, part piece of Arthurian-inspired history, this stately hall attracts King Arthur fans from miles away.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

Edison's cast-in-place concrete houses were a failure, but way ahead of their time.

Maryland's first (and last standing) toll house on America's first federal road established the state as the "Gateway to the West."

The largest earthwork effigy in the world.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

America's oldest archaeological site or a muddled case of wishful thinking.

An Industrial Revolution-era public work that purified water using nothing but sand.

A trompe-l'oeil statue honoring the first guide dog in North America.

The oldest residential street in Europe also features an optical illusion.

According to local lore, this narrow passageway through two large rocks was accidentally created by the devil himself.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

Eighteen miniature death-scene dioramas.

The remains of Crystal Palace Great Exhibition of 1851.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The magic's in the hole!

A rugged lava field dotted with molds of the ancient pines that were growing when the volcano erupted.

On the Oregon coast there is a natural hole that seems to be draining the sea.