A guitar mounted on a wall in Temple Bar honors the Irish musician.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

The house where the writer spent his formative years.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

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

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

A decaying building marks the site associated with Emmett Till's brutal 1955 murder, which helped sparking the civil rights movement.

Built following the War of 1812, this fort has withstood hurricanes for centuries.

Construction uncovered this trove of fossils, which visitors are welcome to add to their own collections.

The center of the only hemisphere that awards visitors with a commemorative coin.

Direct, creative challenge to Mother Nature's winter wrath.

One of Los Angeles's first murals once vibrantly depicted the dangers of United States imperialism.

The 10-foot-wide Long Beach home was built on a dare.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

One of three remaining theatres in the United States created in the Art Deco Mayan Revival style.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

A Roman-style column in Oregon hides a spiral staircase inside.

A giant Troll lurks under one of Seattle's oldest bridges.

A museum dedicated to the history and exploration of both popular music and science fiction.

A walk through the historic city center, under the streets of Seattle.