Northern Ireland's Brobdingnagian stepping stones.

This tiny train shuttles passengers to one of Northern Ireland's most spectacular sights.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

A hugely vast Irish landscape of barren rock that stretches for miles.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

A diminutive, thousand-year-old church believed to be the smallest in Ireland.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

An unusual manor of stunning beauty, born out of a crippling disease.

Outsider art meets paleontology at this roadside reptile repository.

Built by the patriotic residents of Boonsboro in a single day.

Bizarre Cavern.

Near the state border, cars seem to defy the laws of physics by rolling uphill.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

The antique hotel still has a jail in the basement, though the cockfighting ring is long gone.

The 10th-tallest pyramid in the world, this former sports arena is now home to a massive Bass Pro Shops store.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

This museum glorifies the humble potato.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

The fifth-longest natural arch in the world, and the longest outside China.

A house carved into a rock in the 1940s.

The gambling entrepreneur who built a city was also an avid collector of classic cars.

A series of labyrinths in the Nevada desert inspire meditation and calmness.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.