This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

An extravagant western hotel where every floor is the "ground floor."

A wall of chewing gum moonlights as collective art.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

The world's tallest statue of an American hero.

This failed condo development was reborn as a street art hub.

A popular swimming hole that hides one of America's most deadly diving spots.

An emerald-green grotto just a short trip from Austin.

A Texas museum filled with Broncos and Betties.

A modernist landscape of water and sci-fi concrete.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

The highest peak in Northern Ireland is topped with a stone tower and haunting burial mounds.

The modern birthplace of Irish freedom.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."