These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

A hamlet full of permanent Christmas spirit holds one of the earliest theme parks in the United States.

Dozens of houses in the Adirondack Mountains are reminders of a literal "cottage industry" to cure people of a deadly disease.

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

A 70,000-square-foot institution dedicated to a very literal, creationist perspective on the Book of Genesis.

One Confederate statue that accurately reflects the ugliness of its subject.

Regency-era excess on the English Coast.

This burger joint is named after everyone's favorite carnival prize and is adorned with a giant one over the door.

The final resting place of the most famous sharpshooter.

The largest ancient burial mound in Ohio.

The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

An obsolete, vanishing traffic device warns Cincinnati drivers away from middle-of-the-road obstructions.

One of Cincinnati's greatest fighters once trained at a now defunct gym in this Over-The-Rhine neighborhood.

An abandoned relic of the city's failed experiment with below ground transit.

A castle built by an eccentric medieval enthusiast in suburban Ohio.

A giant open-air sculpture made of over 200 full-sized boats.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

An art deco ice cream shop covered in vintage tiles.

The inventor of the iconic Pringles can was so proud of his invention he was buried in one.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

A cluttered and astounding collection of antiquities and curiosities.