Fortified medieval tower house with lovely roof garden.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

Museum covers every step of the chocolate-making process, from cultivation to the finished product.

The past, present, and future of Russia's signature alcohol is remembered in the world's only museum dedicated to the starchy spirit.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

An Irish Memorial commemorating those who perished due to potato blight.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

This elaborate towering structure was once famed for its revolutionary height.

Delicate Wurlitzers, creepy clowns, and The Noid all share space in this insane explosion of kitsch history.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

One of only two commuter aerial tramways in the United States.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

A little sculpture with a large wardrobe.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

The world’s first penitentiary, meant to be humane, drove men insane.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A Nesting Doll of Churches.

Where commuters walk through remnants of an ancient Greek necropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Large collection from the 3rd millennium BCE.

The hallucinogenic center of the ancient world.

Pennsylvanian mass grave and possibly mass murder.