Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

Tiny silver and copper fish set inside blue-green lights are like windows to the underwater world.

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

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."

The modern birthplace of Irish freedom.

A mysterious plaque to the even more mysterious "Fr. Pat Noise," killed in "suspicious circumstances."

One of the oldest cathedrals in the U.K. houses a priceless early manuscript.

A forgotten underground railway once whooshed trams beneath London.

England's “third-oldest college” has not graduated a single student in over 400 years.

A million years ago, our ancient ancestors were cooking with fire in this cave.

Rub it for a bit of good luck.

Malta’s oldest sea water distillation building is now an architectural anomaly on the Sliema waterfront.

A unique, playful portrayal of Jesus as a backpacking traveler.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

Generations have refused to move this doll from its dusty resting place to preserve a castle from a watery fate.

Legend speaks of a banished noblewoman allegedly walled inside this little tower.

The largest of London's subterranean rivers and once a mad, bad center of London life.

This Underground station has been a popular filming location for decades, even before it closed.

This haunting sculpture was created as a statement on the mechanized warfare of the First World War.

Take in the views of Big Ben with a Guinness in hand at this floating pub aboard a 1930s Dutch barge.

This mysterious and unique painting is filled with symbolism.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

Dictionary Johnson’s favorite feline.