The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

A sculpture of a salmon swimming through a brick building.

Entering this curiosity shop is like stepping into a mad scientist's lab.

10,000 flowered plants bloom in the City of Roses.

This abandoned boat sits on a nude beach, is shaped like a UFO, and is covered in graffiti.

Instead of fruit, the branches of this tree are brimming with hopes and dreams.

The magic's in the hole!

Featuring a casually threatening atmosphere along with dessert and coffee to die for.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

To find the "unicorns of the deep" you've got to go downstairs.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

These pretty kitties killed and ate as many as 135 railway workers.

More than 10,000 spoons, some more than a century old, are gathered here.

An obelisk commemorating Lincoln's role in connecting the coasts.

An underground wonderland in Iowa.

Millions of dollars worth of sculpture decorate this Iowa city center.

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

A historic and oft-filmed prison stands in a Chicago suburb.

What was once the second largest steel mill in the US is now a sprawling complex of modern ruins.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

The only thing these street signs will help you navigate is your imagination.

A bizarre house filled with an astounding array of collections.