This tiny patch of arid sand sits in one of the greenest states in the United States.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

Sculptures, jams, and the wild west collide at this folksy retreat.

It's a unique monument honoring a great character who inspired a generation of young women to be more and pursue their dreams.

The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

The world's largest anatomically accurate brain sculpture.

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

Ornate limestone building now filled with geologic specimens, and more.

Tucked away in the forests of Indiana resides an abandoned waterslide that is now a popular graffiti haunt.

Part of a worldwide art project, this mysterious semicircle of concrete shapes holds the pieces of a larger story.

A historic hotel library in Indiana hides more than a few secrets on its shelves.

A map made up of 32 different materials, representing Ireland's 32 counties.

A small memorial commemorates a man who died at Kilkee Cliffs.

The ruins of a monastery that dates to the 7th century.

Ancient Bronze Age rampart that was used into the middle ages.

A strange egg in a mucky bog of western Ireland marks the spot of an aviation milestone.

This 14th century tower house was once the home of Irish poet W.B. Yeats.

Modern sundial uses ancient methods to tell time and date perfectly.

A restaurant with an extensive Irish whiskey bar also has several first editions of famous works by Irish authors.

Huge standing stones mark a site of megalithic mystery.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

The oldest public library in Ireland.

A remarkably intact castle that once was the largest in Ireland.

Experience what life was like in Ireland during the Viking and medieval ages.