This ancient Irish tower could easily have stood in for Rapunzel's prison.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

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

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

One of only two commuter aerial tramways in the United States.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

A crumbling hospital from the 1850s on Roosevelt Island.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

A historic Georgian building and warm springs.

Once the largest unsupported dome in the world, beating out the Pantheon and St Peters in Rome.

This landmark Victorian folly rewards visitors with spectacular views over the Peak District.

These unique stepping stones hug a river's edge to take hikers on a journey through a limestone gorge.

The unusual stilted beacon is the town's only active lighthouse.