This beloved, centuries-old tree stands at the center of a small park dotted with archaeological artifacts.

The scant remains of this flooded historic village can be explored in one of the most remote areas of the Great Smokies.

A priest with no formal artistic training used basic house paint to create gorgeous religious scenes inside this historic church.

Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

This titanic Catholic church in Chicago is also a refuge of the fictional cult-favorite wizard detective Harry Dresden.

A holy well supposedly infused with a saint's spirit flows within this quaint chapel.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

The ruined remains of a coal mining ghost town are hidden within the woods.

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

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

Colin Stokes "got a bit carried away" and built a castle that looks like something out of Tolkien.

Medieval irrigation channels built into the sides of mountains provided Valais with water for hundreds of years.

Marie told fortunes from her small stand on the Boardwalk for decades, including to a young Bruce Springsteen who would busk outside her booth.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

The first presidential bomb shelter was located in an old vault under the Treasury, connected to the White House via tunnel.

The world's oldest Jewish library was founded by Sephardic Jews in 17th century Amsterdam.

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.