A former 19th-century tavern, famous for its peach brandy and honey concoction.

The remains of this visionary community can still be found much as it was a century ago.

World's largest collection of Coke-related items not held by the Coca-Cola company.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

A local scoured more than 1,000 acres for stone to create his masterpiece.

An abandoned theme park with a strange and tumultuous past.

Treehouse motel and treehouse-building school.

Backwards hour and minute hands and a timing mechanism that fluctuates with the temperature led to this clock tower's local nickname.

Behind a modern brick exterior lies the oldest continuously-operating lunch-car diner in the United States.

According to the legend, this strikingly beautiful hill has miraculous healing powers.

This forgotten beach house built to look like a Frank Lloyd Wright masterpiece overlooks a hidden beach.

Eternal resting place of the grave robber and murderer who served as inspiration for many of cinema’s famous madmen.

A six-story-tall golden pyramid, surrounded by a moat.

A hidden grotto on the grounds of the Kane County Government Center.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

The hallucinogenic center of the ancient world.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

A naturally beautiful, seemingly bottomless deep blue spring.

This military tunnel dates back to World War II and provides visitors with a little wartime adrenaline.

Controversial site of what could be Europe's first pyramid.

The place where World War I began.

The haunting ruins of a military fortress turned astronomical observatory sit on a Sarajevo mountaintop.