The eerie ruins of a remote abandoned hamlet said to be founded by the survivors of a shipwreck.

Memorial built in 1922 in remembrance of WWI casualties.

This simple stone memorial remembers a secret, Geneva Convention-defying interrogation base from WWII.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.

On the windswept Dakota plains there is a memorial to circus workers who were struck down by lightning.

The narrowest house in America is seven feet of pure spite.

A smaller model of the Da Vinci sculpture that took 500 years to come to life.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

A total of 22 tiny bridges cross this canal of the Yvette River, forming a unique trail.

A 2017 crowdfunding campaign saved this historic castle from being destroyed.

A huge Megalithic chamber tomb located behind a cafe.

The famous winding walk at Chartres is surrounded in mystery and myth.

Limestone grottoes turns everyday objects into stone.

This museum preserves over-the-top masterpieces that once qualified artisans for membership into a medieval guild.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

The remains of this ornate chapel now act as a portal to a cramped French cemetery.

A beautiful and classically designed villa, with an hourly infestation of monsters.

A line of disused military bunkers built to defend against Nazi invasion lies hidden on the outskirts of the city.

This roadside stand packs 300-plus varieties of tomatoes, from "Maiden's Fire" to "Kaleidoscopic Jewel."